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31,996

31,996 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.).
Deficient Number Happy Number Odious Number Pernicious Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
28
Digit product
1,458
Digital root
1
Palindrome
No
Bit width
15 bits
Reversed
69,913
Recamán's sequence
a(13,343) = 31,996
Square (n²)
1,023,744,016
Cube (n³)
32,755,713,535,936
Divisor count
12
σ(n) — sum of divisors
59,080
φ(n) — Euler's totient
15,120
Sum of prime factors
444

Primality

Prime factorization: 2 2 × 19 × 421

Nearest primes: 31,991 (−5) · 32,003 (+7)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 19 · 38 · 76 · 421 · 842 · 1684 · 7999 · 15998 (half) · 31996
Aliquot sum (sum of proper divisors): 27,084
Factor pairs (a × b = 31,996)
1 × 31996
2 × 15998
4 × 7999
19 × 1684
38 × 842
76 × 421
First multiples
31,996 · 63,992 (double) · 95,988 · 127,984 · 159,980 · 191,976 · 223,972 · 255,968 · 287,964 · 319,960

Sums & aliquot sequence

As consecutive integers: 3,996 + 3,997 + … + 4,003 1,675 + 1,676 + … + 1,693 135 + 136 + … + 286
Aliquot sequence: 31,996 27,084 38,884 29,170 23,354 11,680 16,292 12,226 6,116 5,644 4,940 6,820 9,308 8,332 6,256 7,136 6,976 — unresolved within range

Representations

In words
thirty-one thousand nine hundred ninety-six
Ordinal
31996th
Binary
111110011111100
Octal
76374
Hexadecimal
0x7CFC
Base64
fPw=
One's complement
33,539 (16-bit)
In other bases
ternary (3) 1121220001
quaternary (4) 13303330
quinary (5) 2010441
senary (6) 404044
septenary (7) 162166
nonary (9) 47801
undecimal (11) 22048
duodecimal (12) 16624
tridecimal (13) 11743
tetradecimal (14) b936
pentadecimal (15) 9731

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵λαϡϟϛʹ
Mayan (base 20)
𝋣·𝋳·𝋳·𝋰
Chinese
三萬一千九百九十六
Chinese (financial)
參萬壹仟玖佰玖拾陸
In other modern scripts
Eastern Arabic ٣١٩٩٦ Devanagari ३१९९६ Bengali ৩১৯৯৬ Tamil ௩௧௯௯௬ Thai ๓๑๙๙๖ Tibetan ༣༡༩༩༦ Khmer ៣១៩៩៦ Lao ໓໑໙໙໖ Burmese ၃၁၉၉၆

Digit at this position in famous constants

π — Pi (π)
Digit 31,996 = 8
e — Euler's number (e)
Digit 31,996 = 2
φ — Golden ratio (φ)
Digit 31,996 = 1
√2 — Pythagoras's (√2)
Digit 31,996 = 3
ln 2 — Natural log of 2
Digit 31,996 = 7
γ — Euler-Mascheroni (γ)
Digit 31,996 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31996, here are decompositions:

  • 5 + 31991 = 31996
  • 23 + 31973 = 31996
  • 89 + 31907 = 31996
  • 113 + 31883 = 31996
  • 137 + 31859 = 31996
  • 149 + 31847 = 31996
  • 179 + 31817 = 31996
  • 197 + 31799 = 31996

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-7Cfc
U+7CFC
Other letter (Lo)

UTF-8 encoding: E7 B3 BC (3 bytes).

Hex color
#007CFC
RGB(0, 124, 252)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.124.252.

Address
0.0.124.252
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.124.252

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

Position in π

The digit sequence 31996 first appears in π at position 182,230 of the decimal expansion (the 182,230ordinal-suffix:th 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.