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1,013,888

1,013,888 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.).

1,013,888 (one million thirteen thousand eight hundred eighty-eight) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2⁷ × 89². Its proper divisors sum to 1,028,917, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF7880.

Abundant Number Achilles Number Frugal Number Happy Number Odious Number Powerful Number Practical Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
29
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
8,883,101
Square (n²)
1,027,968,876,544
Cube (n³)
1,042,245,308,301,443,072
Divisor count
24
σ(n) — sum of divisors
2,042,805
φ(n) — Euler's totient
501,248
Sum of prime factors
192

Primality

Prime factorization: 2 7 × 89 2

Nearest primes: 1,013,879 (−9) · 1,013,891 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 8 · 16 · 32 · 64 · 89 · 128 · 178 · 356 · 712 · 1424 · 2848 · 5696 · 7921 · 11392 · 15842 · 31684 · 63368 · 126736 · 253472 · 506944 (half) · 1013888
Aliquot sum (sum of proper divisors): 1,028,917
Factor pairs (a × b = 1,013,888)
1 × 1013888
2 × 506944
4 × 253472
8 × 126736
16 × 63368
32 × 31684
64 × 15842
89 × 11392
128 × 7921
178 × 5696
356 × 2848
712 × 1424
First multiples
1,013,888 · 2,027,776 (double) · 3,041,664 · 4,055,552 · 5,069,440 · 6,083,328 · 7,097,216 · 8,111,104 · 9,124,992 · 10,138,880

Sums & aliquot sequence

As a sum of two squares: 328² + 952² = 712² + 712²
As consecutive integers: 11,348 + 11,349 + … + 11,436 3,833 + 3,834 + … + 4,088
Aliquot sequence: 1,013,888 1,028,917 5,579 805 347 1 0 — terminates at zero

Continued fraction of √n

√1,013,888 = [1006; (1, 11, 1, 1, 27, 1, 5, 2, 2, 4, 1, 1, 1, 1, 1, 1, 15, 8, 1, 1, 2, 1, 1, 1, …)]

Representations

In words
one million thirteen thousand eight hundred eighty-eight
Ordinal
1013888th
Binary
11110111100010000000
Octal
3674200
Hexadecimal
0xF7880
Base64
D3iA
One's complement
4,293,953,407 (32-bit)
Scientific notation
1.013888 × 10⁶
As a duration
1,013,888 s = 11 days, 17 hours, 38 minutes, 8 seconds
In other bases
ternary (3) 1220111210102
quaternary (4) 3313202000
quinary (5) 224421023
senary (6) 33421532
septenary (7) 11421641
nonary (9) 1814712
undecimal (11) 632827
duodecimal (12) 40a8a8
tridecimal (13) 296645
tetradecimal (14) 1c56c8
pentadecimal (15) 150628

As an angle

1,013,888° = 2,816 × 360° + 128°
128° ≈ 2.234 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零一萬三千八百八十八
Chinese (financial)
壹佰零壹萬參仟捌佰捌拾捌
In other modern scripts
Eastern Arabic ١٠١٣٨٨٨ Devanagari १०१३८८८ Bengali ১০১৩৮৮৮ Tamil ௧௦௧௩௮௮௮ Thai ๑๐๑๓๘๘๘ Tibetan ༡༠༡༣༨༨༨ Khmer ១០១៣៨៨៨ Lao ໑໐໑໓໘໘໘ Burmese ၁၀၁၃၈၈၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1013888, here are decompositions:

  • 37 + 1013851 = 1013888
  • 61 + 1013827 = 1013888
  • 97 + 1013791 = 1013888
  • 307 + 1013581 = 1013888
  • 457 + 1013431 = 1013888
  • 487 + 1013401 = 1013888
  • 661 + 1013227 = 1013888
  • 691 + 1013197 = 1013888

Showing the first eight; more decompositions exist.

Hex color
#0F7880
RGB(15, 120, 128)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.120.128.

Address
0.15.120.128
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.120.128

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 1, 3888 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 3888-10-01 (MMDYYYY (US, single-digit day))
  • 3888-01-10 (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 1,013,888 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°.