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13,031

13,031 is a composite number, odd.

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 Odious Number Palindrome Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
8
Digit product
0
Digital root
8
Palindrome
Yes
Bit width
14 bits
Recamán's sequence
a(48,213) = 13,031
Square (n²)
169,806,961
Cube (n³)
2,212,754,508,791
Divisor count
4
σ(n) — sum of divisors
13,272
φ(n) — Euler's totient
12,792
Sum of prime factors
240

Primality

Prime factorization: 83 × 157

Nearest primes: 13,009 (−22) · 13,033 (+2)

Divisors & multiples

All divisors (4)
1 · 83 · 157 · 13031
Aliquot sum (sum of proper divisors): 241
Factor pairs (a × b = 13,031)
1 × 13031
83 × 157
First multiples
13,031 · 26,062 (double) · 39,093 · 52,124 · 65,155 · 78,186 · 91,217 · 104,248 · 117,279 · 130,310

Sums & aliquot sequence

As consecutive integers: 6,515 + 6,516 116 + 117 + … + 198 5 + 6 + … + 161
Aliquot sequence: 13,031 241 1 0 — terminates at zero

Representations

In words
thirteen thousand thirty-one
Ordinal
13031st
Binary
11001011100111
Octal
31347
Hexadecimal
0x32E7
Base64
Muc=
One's complement
52,504 (16-bit)
In other bases
ternary (3) 122212122
quaternary (4) 3023213
quinary (5) 404111
senary (6) 140155
septenary (7) 52664
nonary (9) 18778
undecimal (11) 9877
duodecimal (12) 765b
tridecimal (13) 5c15
tetradecimal (14) 4a6b
pentadecimal (15) 3cdb

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ιγλαʹ
Mayan (base 20)
𝋡·𝋬·𝋫·𝋫
Chinese
一萬三千零三十一
Chinese (financial)
壹萬參仟零參拾壹
In other modern scripts
Eastern Arabic ١٣٠٣١ Devanagari १३०३१ Bengali ১৩০৩১ Tamil ௧௩௦௩௧ Thai ๑๓๐๓๑ Tibetan ༡༣༠༣༡ Khmer ១៣០៣១ Lao ໑໓໐໓໑ Burmese ၁၃၀၃၁

Digit at this position in famous constants

π — Pi (π)
Digit 13,031 = 7
e — Euler's number (e)
Digit 13,031 = 1
φ — Golden ratio (φ)
Digit 13,031 = 9
√2 — Pythagoras's (√2)
Digit 13,031 = 9
ln 2 — Natural log of 2
Digit 13,031 = 0
γ — Euler-Mascheroni (γ)
Digit 13,031 = 0

Also seen as

Unicode codepoint
Circled Katakana Ne
U+32E7
Other symbol (So)

UTF-8 encoding: E3 8B A7 (3 bytes).

Hex color
#0032E7
RGB(0, 50, 231)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.50.231.

Address
0.0.50.231
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.50.231

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

Position in π

The digit sequence 13031 first appears in π at position 9,107 of the decimal expansion (the 9,107ordinal-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.