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1,027,420

1,027,420 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.).

1,027,420 (one million twenty-seven thousand four hundred twenty) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 47 × 1,093. Its proper divisors sum to 1,178,084, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFAD5C.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
247,201
Square (n²)
1,055,591,856,400
Cube (n³)
1,084,536,185,102,488,000
Divisor count
24
σ(n) — sum of divisors
2,205,504
φ(n) — Euler's totient
401,856
Sum of prime factors
1,149

Primality

Prime factorization: 2 2 × 5 × 47 × 1093

Nearest primes: 1,027,417 (−3) · 1,027,421 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 20 · 47 · 94 · 188 · 235 · 470 · 940 · 1093 · 2186 · 4372 · 5465 · 10930 · 21860 · 51371 · 102742 · 205484 · 256855 · 513710 (half) · 1027420
Aliquot sum (sum of proper divisors): 1,178,084
Factor pairs (a × b = 1,027,420)
1 × 1027420
2 × 513710
4 × 256855
5 × 205484
10 × 102742
20 × 51371
47 × 21860
94 × 10930
188 × 5465
235 × 4372
470 × 2186
940 × 1093
First multiples
1,027,420 · 2,054,840 (double) · 3,082,260 · 4,109,680 · 5,137,100 · 6,164,520 · 7,191,940 · 8,219,360 · 9,246,780 · 10,274,200

Sums & aliquot sequence

As consecutive integers: 205,482 + 205,483 + 205,484 + 205,485 + 205,486 128,424 + 128,425 + … + 128,431 25,666 + 25,667 + … + 25,705 21,837 + 21,838 + … + 21,883
Aliquot sequence: 1,027,420 1,178,084 922,840 1,153,640 1,472,920 1,987,400 2,885,800 3,988,760 4,986,040 6,597,320 9,265,720 11,582,240 15,996,640 26,188,160 43,212,640 64,889,312 63,438,664 — unresolved within range

Continued fraction of √n

√1,027,420 = [1013; (1, 1, 1, 1, 1, 1, 2, 2, 183, 1, 6, 1, 21, 2, 2, 16, 2, 1, 5, 4, 1, 1, 4, 1, …)]

Representations

In words
one million twenty-seven thousand four hundred twenty
Ordinal
1027420th
Binary
11111010110101011100
Octal
3726534
Hexadecimal
0xFAD5C
Base64
D61c
One's complement
4,293,939,875 (32-bit)
Scientific notation
1.02742 × 10⁶
As a duration
1,027,420 s = 11 days, 21 hours, 23 minutes, 40 seconds
In other bases
ternary (3) 1221012100121
quaternary (4) 3322311130
quinary (5) 230334140
senary (6) 34004324
septenary (7) 11506252
nonary (9) 1835317
undecimal (11) 641a09
duodecimal (12) 4166a4
tridecimal (13) 29c854
tetradecimal (14) 1ca5d2
pentadecimal (15) 15464a

As an angle

1,027,420° = 2,853 × 360° + 340°
340° ≈ 5.934 rad
Compass bearing: NNW (north-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零二萬七千四百二十
Chinese (financial)
壹佰零貳萬柒仟肆佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٧٤٢٠ Devanagari १०२७४२० Bengali ১০২৭৪২০ Tamil ௧௦௨௭௪௨௦ Thai ๑๐๒๗๔๒๐ Tibetan ༡༠༢༧༤༢༠ Khmer ១០២៧៤២០ Lao ໑໐໒໗໔໒໐ Burmese ၁၀၂၇၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1027420, here are decompositions:

  • 3 + 1027417 = 1027420
  • 11 + 1027409 = 1027420
  • 29 + 1027391 = 1027420
  • 89 + 1027331 = 1027420
  • 101 + 1027319 = 1027420
  • 131 + 1027289 = 1027420
  • 179 + 1027241 = 1027420
  • 197 + 1027223 = 1027420

Showing the first eight; more decompositions exist.

Hex color
#0FAD5C
RGB(15, 173, 92)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.173.92.

Address
0.15.173.92
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.173.92

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 7420 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7420-02-01 (DMMYYYY (Euro, single-digit day))
  • 7420-10-02 (MMDYYYY (US, single-digit day))
  • 7420-02-10 (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 1,027,420 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°.