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31,116

31,116 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.).
Abundant Number Evil Number Harshad / Niven Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
12
Digit product
18
Digital root
3
Palindrome
No
Bit width
15 bits
Reversed
61,113
Recamán's sequence
a(31,431) = 31,116
Square (n²)
968,205,456
Cube (n³)
30,126,680,968,896
Divisor count
12
σ(n) — sum of divisors
72,632
φ(n) — Euler's totient
10,368
Sum of prime factors
2,600

Primality

Prime factorization: 2 2 × 3 × 2593

Nearest primes: 31,091 (−25) · 31,121 (+5)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 2593 · 5186 · 7779 · 10372 · 15558 (half) · 31116
Aliquot sum (sum of proper divisors): 41,516
Factor pairs (a × b = 31,116)
1 × 31116
2 × 15558
3 × 10372
4 × 7779
6 × 5186
12 × 2593
First multiples
31,116 · 62,232 (double) · 93,348 · 124,464 · 155,580 · 186,696 · 217,812 · 248,928 · 280,044 · 311,160

Sums & aliquot sequence

As consecutive integers: 10,371 + 10,372 + 10,373 3,886 + 3,887 + … + 3,893 1,285 + 1,286 + … + 1,308
Aliquot sequence: 31,116 41,516 32,572 27,908 20,938 13,352 11,698 5,852 7,588 7,644 14,700 34,776 80,424 137,586 149,838 194,898 230,478 — unresolved within range

Representations

In words
thirty-one thousand one hundred sixteen
Ordinal
31116th
Binary
111100110001100
Octal
74614
Hexadecimal
0x798C
Base64
eYw=
One's complement
34,419 (16-bit)
In other bases
ternary (3) 1120200110
quaternary (4) 13212030
quinary (5) 1443431
senary (6) 400020
septenary (7) 156501
nonary (9) 46613
undecimal (11) 21418
duodecimal (12) 16010
tridecimal (13) 11217
tetradecimal (14) b4a8
pentadecimal (15) 9346

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓆼𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵λαριϛʹ
Mayan (base 20)
𝋣·𝋱·𝋯·𝋰
Chinese
三萬一千一百一十六
Chinese (financial)
參萬壹仟壹佰壹拾陸
In other modern scripts
Eastern Arabic ٣١١١٦ Devanagari ३१११६ Bengali ৩১১১৬ Tamil ௩௧௧௧௬ Thai ๓๑๑๑๖ Tibetan ༣༡༡༡༦ Khmer ៣១១១៦ Lao ໓໑໑໑໖ Burmese ၃၁၁၁၆

Digit at this position in famous constants

π — Pi (π)
Digit 31,116 = 1
e — Euler's number (e)
Digit 31,116 = 7
φ — Golden ratio (φ)
Digit 31,116 = 7
√2 — Pythagoras's (√2)
Digit 31,116 = 0
ln 2 — Natural log of 2
Digit 31,116 = 9
γ — Euler-Mascheroni (γ)
Digit 31,116 = 5

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31116, here are decompositions:

  • 37 + 31079 = 31116
  • 47 + 31069 = 31116
  • 53 + 31063 = 31116
  • 83 + 31033 = 31116
  • 97 + 31019 = 31116
  • 103 + 31013 = 31116
  • 139 + 30977 = 31116
  • 167 + 30949 = 31116

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-798C
U+798C
Other letter (Lo)

UTF-8 encoding: E7 A6 8C (3 bytes).

Hex color
#00798C
RGB(0, 121, 140)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.121.140.

Address
0.0.121.140
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.121.140

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

Position in π

The digit sequence 31116 first appears in π at position 223,592 of the decimal expansion (the 223,592ordinal-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.