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1,013,990

1,013,990 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.).

1,013,990 (one million thirteen thousand nine hundred ninety) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 101,399. Written other ways, in hexadecimal, 0xF78E6.

Arithmetic Number Cube-Free Deficient Number Gapful Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
993,101
Square (n²)
1,028,175,720,100
Cube (n³)
1,042,559,898,424,199,000
Divisor count
8
σ(n) — sum of divisors
1,825,200
φ(n) — Euler's totient
405,592
Sum of prime factors
101,406

Primality

Prime factorization: 2 × 5 × 101399

Nearest primes: 1,013,933 (−57) · 1,013,993 (+3)

Divisors & multiples

All divisors (8)
1 · 2 · 5 · 10 · 101399 · 202798 · 506995 (half) · 1013990
Aliquot sum (sum of proper divisors): 811,210
Factor pairs (a × b = 1,013,990)
1 × 1013990
2 × 506995
5 × 202798
10 × 101399
First multiples
1,013,990 · 2,027,980 (double) · 3,041,970 · 4,055,960 · 5,069,950 · 6,083,940 · 7,097,930 · 8,111,920 · 9,125,910 · 10,139,900

Sums & aliquot sequence

As consecutive integers: 253,496 + 253,497 + 253,498 + 253,499 202,796 + 202,797 + 202,798 + 202,799 + 202,800 50,690 + 50,691 + … + 50,709
Aliquot sequence: 1,013,990 811,210 712,886 356,446 178,226 89,116 66,844 57,140 62,896 58,996 64,204 64,260 177,660 467,460 1,213,128 2,718,072 5,696,568 — unresolved within range

Continued fraction of √n

√1,013,990 = [1006; (1, 33, 7, 2, 2, 18, 1, 1, 2, 6, 2, 1, 24, 1, 4, 3, 1, 9, 69, 2, 1, 9, 1, 13, …)]

Representations

In words
one million thirteen thousand nine hundred ninety
Ordinal
1013990th
Binary
11110111100011100110
Octal
3674346
Hexadecimal
0xF78E6
Base64
D3jm
One's complement
4,293,953,305 (32-bit)
Scientific notation
1.01399 × 10⁶
As a duration
1,013,990 s = 11 days, 17 hours, 39 minutes, 50 seconds
In other bases
ternary (3) 1220111221012
quaternary (4) 3313203212
quinary (5) 224421430
senary (6) 33422222
septenary (7) 11422145
nonary (9) 1814835
undecimal (11) 63290a
duodecimal (12) 40a972
tridecimal (13) 2966c3
tetradecimal (14) 1c575c
pentadecimal (15) 150695

As an angle

1,013,990° = 2,816 × 360° + 230°
230° ≈ 4.014 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零一萬三千九百九十
Chinese (financial)
壹佰零壹萬參仟玖佰玖拾
In other modern scripts
Eastern Arabic ١٠١٣٩٩٠ Devanagari १०१३९९० Bengali ১০১৩৯৯০ Tamil ௧௦௧௩௯௯௦ Thai ๑๐๑๓๙๙๐ Tibetan ༡༠༡༣༩༩༠ Khmer ១០១៣៩៩០ Lao ໑໐໑໓໙໙໐ Burmese ၁၀၁၃၉၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1013990, here are decompositions:

  • 67 + 1013923 = 1013990
  • 97 + 1013893 = 1013990
  • 139 + 1013851 = 1013990
  • 151 + 1013839 = 1013990
  • 157 + 1013833 = 1013990
  • 163 + 1013827 = 1013990
  • 199 + 1013791 = 1013990
  • 223 + 1013767 = 1013990

Showing the first eight; more decompositions exist.

Hex color
#0F78E6
RGB(15, 120, 230)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.120.230.

Address
0.15.120.230
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.120.230

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 3990 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 3990-10-01 (MMDYYYY (US, single-digit day))
  • 3990-01-10 (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 1,013,990 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°.