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23,172

23,172 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 Arithmetic Number Evil Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
15
Digit product
84
Digital root
6
Palindrome
No
Bit width
15 bits
Reversed
27,132
Recamán's sequence
a(166,851) = 23,172
Square (n²)
536,941,584
Cube (n³)
12,442,010,384,448
Divisor count
12
σ(n) — sum of divisors
54,096
φ(n) — Euler's totient
7,720
Sum of prime factors
1,938

Primality

Prime factorization: 2 2 × 3 × 1931

Nearest primes: 23,167 (−5) · 23,173 (+1)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 1931 · 3862 · 5793 · 7724 · 11586 (half) · 23172
Aliquot sum (sum of proper divisors): 30,924
Factor pairs (a × b = 23,172)
1 × 23172
2 × 11586
3 × 7724
4 × 5793
6 × 3862
12 × 1931
First multiples
23,172 · 46,344 (double) · 69,516 · 92,688 · 115,860 · 139,032 · 162,204 · 185,376 · 208,548 · 231,720

Sums & aliquot sequence

As consecutive integers: 7,723 + 7,724 + 7,725 2,893 + 2,894 + … + 2,900 954 + 955 + … + 977
Aliquot sequence: 23,172 30,924 47,336 43,804 34,820 38,344 33,566 20,698 10,982 7,438 3,722 1,864 1,646 826 614 310 266 — unresolved within range

Representations

In words
twenty-three thousand one hundred seventy-two
Ordinal
23172nd
Binary
101101010000100
Octal
55204
Hexadecimal
0x5A84
Base64
WoQ=
One's complement
42,363 (16-bit)
In other bases
ternary (3) 1011210020
quaternary (4) 11222010
quinary (5) 1220142
senary (6) 255140
septenary (7) 124362
nonary (9) 34706
undecimal (11) 16456
duodecimal (12) 114b0
tridecimal (13) a716
tetradecimal (14) 8632
pentadecimal (15) 6cec

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵κγροβʹ
Mayan (base 20)
𝋢·𝋱·𝋲·𝋬
Chinese
二萬三千一百七十二
Chinese (financial)
貳萬參仟壹佰柒拾貳
In other modern scripts
Eastern Arabic ٢٣١٧٢ Devanagari २३१७२ Bengali ২৩১৭২ Tamil ௨௩௧௭௨ Thai ๒๓๑๗๒ Tibetan ༢༣༡༧༢ Khmer ២៣១៧២ Lao ໒໓໑໗໒ Burmese ၂၃၁၇၂

Digit at this position in famous constants

π — Pi (π)
Digit 23,172 = 2
e — Euler's number (e)
Digit 23,172 = 2
φ — Golden ratio (φ)
Digit 23,172 = 4
√2 — Pythagoras's (√2)
Digit 23,172 = 0
ln 2 — Natural log of 2
Digit 23,172 = 7
γ — Euler-Mascheroni (γ)
Digit 23,172 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 23172, here are decompositions:

  • 5 + 23167 = 23172
  • 13 + 23159 = 23172
  • 29 + 23143 = 23172
  • 41 + 23131 = 23172
  • 73 + 23099 = 23172
  • 101 + 23071 = 23172
  • 109 + 23063 = 23172
  • 113 + 23059 = 23172

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-5A84
U+5A84
Other letter (Lo)

UTF-8 encoding: E5 AA 84 (3 bytes).

Hex color
#005A84
RGB(0, 90, 132)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.90.132.

Address
0.0.90.132
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.90.132

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

Position in π

The digit sequence 23172 first appears in π at position 136 of the decimal expansion (the 136ordinal-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.