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1,047,420

1,047,420 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

1,047,420 (one million forty-seven thousand four hundred twenty) is an even 7-digit number. It is a composite number with 108 divisors, and factors as 2² × 3² × 5 × 11 × 23². Its proper divisors sum to 2,575,836, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFFB7C.

Abundant Number Cube-Free Evil Number Gapful Number Happy Number Harshad / Niven Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
247,401
Square (n²)
1,097,088,656,400
Cube (n³)
1,149,112,600,486,488,000
Divisor count
108
σ(n) — sum of divisors
3,623,256
φ(n) — Euler's totient
242,880
Sum of prime factors
72

Primality

Prime factorization: 2 2 × 3 2 × 5 × 11 × 23 2

Nearest primes: 1,047,419 (−1) · 1,047,467 (+47)

Divisors & multiples

All divisors (108)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 11 · 12 · 15 · 18 · 20 · 22 · 23 · 30 · 33 · 36 · 44 · 45 · 46 · 55 · 60 · 66 · 69 · 90 · 92 · 99 · 110 · 115 · 132 · 138 · 165 · 180 · 198 · 207 · 220 · 230 · 253 · 276 · 330 · 345 · 396 · 414 · 460 · 495 · 506 · 529 · 660 · 690 · 759 · 828 · 990 · 1012 · 1035 · 1058 · 1265 · 1380 · 1518 · 1587 · 1980 · 2070 · 2116 · 2277 · 2530 · 2645 · 3036 · 3174 · 3795 · 4140 · 4554 · 4761 · 5060 · 5290 · 5819 · 6348 · 7590 · 7935 · 9108 · 9522 · 10580 · 11385 · 11638 · 15180 · 15870 · 17457 · 19044 · 22770 · 23276 · 23805 · 29095 · 31740 · 34914 · 45540 · 47610 · 52371 · 58190 · 69828 · 87285 · 95220 · 104742 · 116380 · 174570 · 209484 · 261855 · 349140 · 523710 (half) · 1047420
Aliquot sum (sum of proper divisors): 2,575,836
Factor pairs (a × b = 1,047,420)
1 × 1047420
2 × 523710
3 × 349140
4 × 261855
5 × 209484
6 × 174570
9 × 116380
10 × 104742
11 × 95220
12 × 87285
15 × 69828
18 × 58190
20 × 52371
22 × 47610
23 × 45540
30 × 34914
33 × 31740
36 × 29095
44 × 23805
45 × 23276
46 × 22770
55 × 19044
60 × 17457
66 × 15870
69 × 15180
90 × 11638
92 × 11385
99 × 10580
110 × 9522
115 × 9108
132 × 7935
138 × 7590
165 × 6348
180 × 5819
198 × 5290
207 × 5060
220 × 4761
230 × 4554
253 × 4140
276 × 3795
330 × 3174
345 × 3036
396 × 2645
414 × 2530
460 × 2277
495 × 2116
506 × 2070
529 × 1980
660 × 1587
690 × 1518
759 × 1380
828 × 1265
990 × 1058
1012 × 1035
First multiples
1,047,420 · 2,094,840 (double) · 3,142,260 · 4,189,680 · 5,237,100 · 6,284,520 · 7,331,940 · 8,379,360 · 9,426,780 · 10,474,200

Sums & aliquot sequence

As consecutive integers: 349,139 + 349,140 + 349,141 209,482 + 209,483 + 209,484 + 209,485 + 209,486 130,924 + 130,925 + … + 130,931 116,376 + 116,377 + … + 116,384
Aliquot sequence: 1,047,420 2,575,836 3,935,396 2,951,554 1,475,780 1,655,572 1,265,388 1,687,212 2,577,776 2,487,376 2,331,946 1,390,454 855,706 445,658 225,670 180,554 126,166 — unresolved within range

Continued fraction of √n

√1,047,420 = [1023; (2, 3, 2, 1, 2, 2, 2, 3, 2, 5, 4, 3, 1, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 5, …)]

Period length 54 — the block in parentheses repeats forever.

Representations

In words
one million forty-seven thousand four hundred twenty
Ordinal
1047420th
Binary
11111111101101111100
Octal
3775574
Hexadecimal
0xFFB7C
Base64
D/t8
One's complement
4,293,919,875 (32-bit)
Scientific notation
1.04742 × 10⁶
As a duration
1,047,420 s = 12 days, 2 hours, 57 minutes
In other bases
ternary (3) 1222012210100
quaternary (4) 3333231330
quinary (5) 232004140
senary (6) 34241100
septenary (7) 11621463
nonary (9) 1865710
undecimal (11) 655a40
duodecimal (12) 426190
tridecimal (13) 2a899a
tetradecimal (14) 1d39da
pentadecimal (15) 15a530

As an angle

1,047,420° = 2,909 × 360° + 180°
180° ≈ 3.142 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零四萬七千四百二十
Chinese (financial)
壹佰零肆萬柒仟肆佰貳拾
In other modern scripts
Eastern Arabic ١٠٤٧٤٢٠ Devanagari १०४७४२० Bengali ১০৪৭৪২০ Tamil ௧௦௪௭௪௨௦ Thai ๑๐๔๗๔๒๐ Tibetan ༡༠༤༧༤༢༠ Khmer ១០៤៧៤២០ Lao ໑໐໔໗໔໒໐ Burmese ၁၀၄၇၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1047420, here are decompositions:

  • 29 + 1047391 = 1047420
  • 41 + 1047379 = 1047420
  • 47 + 1047373 = 1047420
  • 53 + 1047367 = 1047420
  • 79 + 1047341 = 1047420
  • 97 + 1047323 = 1047420
  • 103 + 1047317 = 1047420
  • 107 + 1047313 = 1047420

Showing the first eight; more decompositions exist.

Hex color
#0FFB7C
RGB(15, 251, 124)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.251.124.

Address
0.15.251.124
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.251.124

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 4, 7420 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7420-04-01 (DMMYYYY (Euro, single-digit day))
  • 7420-10-04 (MMDYYYY (US, single-digit day))
  • 7420-04-10 (DDMYYYY (Euro, single-digit month))
Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,047,420 and was likely granted around 1912.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.