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1,042,920

1,042,920 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.).

1,042,920 (one million forty-two thousand nine hundred twenty) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2³ × 3² × 5 × 2,897. Its proper divisors sum to 2,347,740, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE9E8.

Abundant Number Gapful Number Harshad / Niven Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
292,401
Square (n²)
1,087,682,126,400
Cube (n³)
1,134,365,443,265,088,000
Divisor count
48
σ(n) — sum of divisors
3,390,660
φ(n) — Euler's totient
278,016
Sum of prime factors
2,914

Primality

Prime factorization: 2 3 × 3 2 × 5 × 2897

Nearest primes: 1,042,903 (−17) · 1,042,931 (+11)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 18 · 20 · 24 · 30 · 36 · 40 · 45 · 60 · 72 · 90 · 120 · 180 · 360 · 2897 · 5794 · 8691 · 11588 · 14485 · 17382 · 23176 · 26073 · 28970 · 34764 · 43455 · 52146 · 57940 · 69528 · 86910 · 104292 · 115880 · 130365 · 173820 · 208584 · 260730 · 347640 · 521460 (half) · 1042920
Aliquot sum (sum of proper divisors): 2,347,740
Factor pairs (a × b = 1,042,920)
1 × 1042920
2 × 521460
3 × 347640
4 × 260730
5 × 208584
6 × 173820
8 × 130365
9 × 115880
10 × 104292
12 × 86910
15 × 69528
18 × 57940
20 × 52146
24 × 43455
30 × 34764
36 × 28970
40 × 26073
45 × 23176
60 × 17382
72 × 14485
90 × 11588
120 × 8691
180 × 5794
360 × 2897
First multiples
1,042,920 · 2,085,840 (double) · 3,128,760 · 4,171,680 · 5,214,600 · 6,257,520 · 7,300,440 · 8,343,360 · 9,386,280 · 10,429,200

Sums & aliquot sequence

As a sum of two squares: 294² + 978² = 606² + 822²
As consecutive integers: 347,639 + 347,640 + 347,641 208,582 + 208,583 + 208,584 + 208,585 + 208,586 115,876 + 115,877 + … + 115,884 69,521 + 69,522 + … + 69,535
Aliquot sequence: 1,042,920 2,347,740 4,774,284 7,294,136 6,607,504 6,290,976 11,097,024 19,291,536 42,802,704 94,101,232 95,542,880 136,292,080 180,587,192 181,508,728 182,580,872 169,223,728 184,347,392 — unresolved within range

Continued fraction of √n

√1,042,920 = [1021; (4, 3, 1, 3, 1, 6, 1, 1, 56, 4, 1, 40, 1, 7, 2, 226, 2, 7, 1, 40, 1, 4, 56, 1, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one million forty-two thousand nine hundred twenty
Ordinal
1042920th
Binary
11111110100111101000
Octal
3764750
Hexadecimal
0xFE9E8
Base64
D+no
One's complement
4,293,924,375 (32-bit)
Scientific notation
1.04292 × 10⁶
As a duration
1,042,920 s = 12 days, 1 hour, 42 minutes
In other bases
ternary (3) 1221222121200
quaternary (4) 3332213220
quinary (5) 231333140
senary (6) 34204200
septenary (7) 11602404
nonary (9) 1858550
undecimal (11) 65261a
duodecimal (12) 423660
tridecimal (13) 2a6918
tetradecimal (14) 1d2104
pentadecimal (15) 159030

As an angle

1,042,920° = 2,897 × 360°
0° ≈ 0 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零四萬二千九百二十
Chinese (financial)
壹佰零肆萬貳仟玖佰貳拾
In other modern scripts
Eastern Arabic ١٠٤٢٩٢٠ Devanagari १०४२९२० Bengali ১০৪২৯২০ Tamil ௧௦௪௨௯௨௦ Thai ๑๐๔๒๙๒๐ Tibetan ༡༠༤༢༩༢༠ Khmer ១០៤២៩២០ Lao ໑໐໔໒໙໒໐ Burmese ၁၀၄၂၉၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042920, here are decompositions:

  • 17 + 1042903 = 1042920
  • 19 + 1042901 = 1042920
  • 23 + 1042897 = 1042920
  • 59 + 1042861 = 1042920
  • 71 + 1042849 = 1042920
  • 83 + 1042837 = 1042920
  • 101 + 1042819 = 1042920
  • 139 + 1042781 = 1042920

Showing the first eight; more decompositions exist.

Hex color
#0FE9E8
RGB(15, 233, 232)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.233.232.

Address
0.15.233.232
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.233.232

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 4, 2920 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2920-04-01 (DMMYYYY (Euro, single-digit day))
  • 2920-10-04 (MMDYYYY (US, single-digit day))
  • 2920-04-10 (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 1,042,920 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°.