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31,994

31,994 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 Gapful Number Happy Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
26
Digit product
972
Digital root
8
Palindrome
No
Bit width
15 bits
Reversed
49,913
Recamán's sequence
a(13,347) = 31,994
Square (n²)
1,023,616,036
Cube (n³)
32,749,571,455,784
Divisor count
8
σ(n) — sum of divisors
50,868
φ(n) — Euler's totient
15,040
Sum of prime factors
960

Primality

Prime factorization: 2 × 17 × 941

Nearest primes: 31,991 (−3) · 32,003 (+9)

Divisors & multiples

All divisors (8)
1 · 2 · 17 · 34 · 941 · 1882 · 15997 (half) · 31994
Aliquot sum (sum of proper divisors): 18,874
Factor pairs (a × b = 31,994)
1 × 31994
2 × 15997
17 × 1882
34 × 941
First multiples
31,994 · 63,988 (double) · 95,982 · 127,976 · 159,970 · 191,964 · 223,958 · 255,952 · 287,946 · 319,940

Sums & aliquot sequence

As a sum of two squares: 37² + 175² = 115² + 137²
As consecutive integers: 7,997 + 7,998 + 7,999 + 8,000 1,874 + 1,875 + … + 1,890 437 + 438 + … + 504
Aliquot sequence: 31,994 18,874 9,440 13,240 16,640 26,284 19,720 28,880 41,986 30,014 16,186 8,096 10,048 10,018 5,012 5,068 5,124 — unresolved within range

Representations

In words
thirty-one thousand nine hundred ninety-four
Ordinal
31994th
Binary
111110011111010
Octal
76372
Hexadecimal
0x7CFA
Base64
fPo=
One's complement
33,541 (16-bit)
In other bases
ternary (3) 1121212222
quaternary (4) 13303322
quinary (5) 2010434
senary (6) 404042
septenary (7) 162164
nonary (9) 47788
undecimal (11) 22046
duodecimal (12) 16622
tridecimal (13) 11741
tetradecimal (14) b934
pentadecimal (15) 972e

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵λαϡϟδʹ
Mayan (base 20)
𝋣·𝋳·𝋳·𝋮
Chinese
三萬一千九百九十四
Chinese (financial)
參萬壹仟玖佰玖拾肆
In other modern scripts
Eastern Arabic ٣١٩٩٤ Devanagari ३१९९४ Bengali ৩১৯৯৪ Tamil ௩௧௯௯௪ Thai ๓๑๙๙๔ Tibetan ༣༡༩༩༤ Khmer ៣១៩៩៤ Lao ໓໑໙໙໔ Burmese ၃၁၉၉၄

Digit at this position in famous constants

π — Pi (π)
Digit 31,994 = 9
e — Euler's number (e)
Digit 31,994 = 9
φ — Golden ratio (φ)
Digit 31,994 = 6
√2 — Pythagoras's (√2)
Digit 31,994 = 1
ln 2 — Natural log of 2
Digit 31,994 = 4
γ — Euler-Mascheroni (γ)
Digit 31,994 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31994, here are decompositions:

  • 3 + 31991 = 31994
  • 13 + 31981 = 31994
  • 31 + 31963 = 31994
  • 37 + 31957 = 31994
  • 103 + 31891 = 31994
  • 223 + 31771 = 31994
  • 271 + 31723 = 31994
  • 307 + 31687 = 31994

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-7Cfa
U+7CFA
Other letter (Lo)

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

Hex color
#007CFA
RGB(0, 124, 250)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.124.250.

Address
0.0.124.250
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.124.250

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

Position in π

The digit sequence 31994 first appears in π at position 89,472 of the decimal expansion (the 89,472ordinal-suffix:nd 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.