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31,004

31,004 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.).
Arithmetic Number Deficient Number Evil Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
15 bits
Reversed
40,013
Recamán's sequence
a(31,655) = 31,004
Square (n²)
961,248,016
Cube (n³)
29,802,533,488,064
Divisor count
12
σ(n) — sum of divisors
56,784
φ(n) — Euler's totient
14,784
Sum of prime factors
364

Primality

Prime factorization: 2 2 × 23 × 337

Nearest primes: 30,983 (−21) · 31,013 (+9)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 23 · 46 · 92 · 337 · 674 · 1348 · 7751 · 15502 (half) · 31004
Aliquot sum (sum of proper divisors): 25,780
Factor pairs (a × b = 31,004)
1 × 31004
2 × 15502
4 × 7751
23 × 1348
46 × 674
92 × 337
First multiples
31,004 · 62,008 (double) · 93,012 · 124,016 · 155,020 · 186,024 · 217,028 · 248,032 · 279,036 · 310,040

Sums & aliquot sequence

As consecutive integers: 3,872 + 3,873 + … + 3,879 1,337 + 1,338 + … + 1,359 77 + 78 + … + 260
Aliquot sequence: 31,004 25,780 28,400 40,792 35,708 28,132 24,984 42,876 68,564 53,824 56,793 25,863 9,705 5,847 1,953 1,375 497 — unresolved within range

Representations

In words
thirty-one thousand four
Ordinal
31004th
Binary
111100100011100
Octal
74434
Hexadecimal
0x791C
Base64
eRw=
One's complement
34,531 (16-bit)
In other bases
ternary (3) 1120112022
quaternary (4) 13210130
quinary (5) 1443004
senary (6) 355312
septenary (7) 156251
nonary (9) 46468
undecimal (11) 21326
duodecimal (12) 15b38
tridecimal (13) 1115c
tetradecimal (14) b428
pentadecimal (15) 92be

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓆼𓏺𓏺𓏺𓏺
Greek (Milesian)
͵λαδʹ
Mayan (base 20)
𝋣·𝋱·𝋪·𝋤
Chinese
三萬一千零四
Chinese (financial)
參萬壹仟零肆
In other modern scripts
Eastern Arabic ٣١٠٠٤ Devanagari ३१००४ Bengali ৩১০০৪ Tamil ௩௧௦௦௪ Thai ๓๑๐๐๔ Tibetan ༣༡༠༠༤ Khmer ៣១០០៤ Lao ໓໑໐໐໔ Burmese ၃၁၀၀၄

Digit at this position in famous constants

π — Pi (π)
Digit 31,004 = 2
e — Euler's number (e)
Digit 31,004 = 0
φ — Golden ratio (φ)
Digit 31,004 = 2
√2 — Pythagoras's (√2)
Digit 31,004 = 1
ln 2 — Natural log of 2
Digit 31,004 = 4
γ — Euler-Mascheroni (γ)
Digit 31,004 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31004, here are decompositions:

  • 67 + 30937 = 31004
  • 73 + 30931 = 31004
  • 151 + 30853 = 31004
  • 163 + 30841 = 31004
  • 223 + 30781 = 31004
  • 241 + 30763 = 31004
  • 277 + 30727 = 31004
  • 307 + 30697 = 31004

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-791C
U+791C
Other letter (Lo)

UTF-8 encoding: E7 A4 9C (3 bytes).

Hex color
#00791C
RGB(0, 121, 28)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.121.28.

Address
0.0.121.28
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.121.28

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

Position in π

The digit sequence 31004 first appears in π at position 38,001 of the decimal expansion (the 38,001ordinal-suffix:st digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.