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1,013,872

1,013,872 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.).

1,013,872 (one million thirteen thousand eight hundred seventy-two) is an even 7-digit number. It is a composite number with 10 divisors, and factors as 2⁴ × 63,367. Written other ways, in hexadecimal, 0xF7870.

Deficient Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
2,783,101
Square (n²)
1,027,936,432,384
Cube (n³)
1,042,195,966,574,030,848
Divisor count
10
σ(n) — sum of divisors
1,964,408
φ(n) — Euler's totient
506,928
Sum of prime factors
63,375

Primality

Prime factorization: 2 4 × 63367

Nearest primes: 1,013,851 (−21) · 1,013,879 (+7)

Divisors & multiples

All divisors (10)
1 · 2 · 4 · 8 · 16 · 63367 · 126734 · 253468 · 506936 (half) · 1013872
Aliquot sum (sum of proper divisors): 950,536
Factor pairs (a × b = 1,013,872)
1 × 1013872
2 × 506936
4 × 253468
8 × 126734
16 × 63367
First multiples
1,013,872 · 2,027,744 (double) · 3,041,616 · 4,055,488 · 5,069,360 · 6,083,232 · 7,097,104 · 8,110,976 · 9,124,848 · 10,138,720

Sums & aliquot sequence

As consecutive integers: 31,668 + 31,669 + … + 31,699
Aliquot sequence: 1,013,872 950,536 847,304 741,406 432,338 222,250 256,982 163,570 157,838 78,922 39,464 34,546 19,598 10,642 6,314 5,782 4,478 — unresolved within range

Continued fraction of √n

√1,013,872 = [1006; (1, 10, 2, 1, 1, 1, 4, 1, 1, 9, 1, 7, 1, 2, 1, 4, 2, 1, 1, 1, 1, 1, 3, 1, …)]

Representations

In words
one million thirteen thousand eight hundred seventy-two
Ordinal
1013872nd
Binary
11110111100001110000
Octal
3674160
Hexadecimal
0xF7870
Base64
D3hw
One's complement
4,293,953,423 (32-bit)
Scientific notation
1.013872 × 10⁶
As a duration
1,013,872 s = 11 days, 17 hours, 37 minutes, 52 seconds
In other bases
ternary (3) 1220111202211
quaternary (4) 3313201300
quinary (5) 224420442
senary (6) 33421504
septenary (7) 11421616
nonary (9) 1814684
undecimal (11) 632812
duodecimal (12) 40a894
tridecimal (13) 296632
tetradecimal (14) 1c56b6
pentadecimal (15) 150617

As an angle

1,013,872° = 2,816 × 360° + 112°
112° ≈ 1.955 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零一萬三千八百七十二
Chinese (financial)
壹佰零壹萬參仟捌佰柒拾貳
In other modern scripts
Eastern Arabic ١٠١٣٨٧٢ Devanagari १०१३८७२ Bengali ১০১৩৮৭২ Tamil ௧௦௧௩௮௭௨ Thai ๑๐๑๓๘๗๒ Tibetan ༡༠༡༣༨༧༢ Khmer ១០១៣៨៧២ Lao ໑໐໑໓໘໗໒ Burmese ၁၀၁၃၈၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1013872, here are decompositions:

  • 29 + 1013843 = 1013872
  • 53 + 1013819 = 1013872
  • 59 + 1013813 = 1013872
  • 131 + 1013741 = 1013872
  • 173 + 1013699 = 1013872
  • 191 + 1013681 = 1013872
  • 263 + 1013609 = 1013872
  • 269 + 1013603 = 1013872

Showing the first eight; more decompositions exist.

Hex color
#0F7870
RGB(15, 120, 112)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.120.112.

Address
0.15.120.112
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.120.112

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 3872 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 3872-10-01 (MMDYYYY (US, single-digit day))
  • 3872-01-10 (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 1,013,872 and was likely granted around 1911.

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°.