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12,431

12,431 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 Happy Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
11
Digit product
24
Digital root
2
Palindrome
No
Bit width
14 bits
Reversed
13,421
Recamán's sequence
a(21,922) = 12,431
Square (n²)
154,529,761
Cube (n³)
1,920,959,458,991
Divisor count
4
σ(n) — sum of divisors
12,864
φ(n) — Euler's totient
12,000
Sum of prime factors
432

Primality

Prime factorization: 31 × 401

Nearest primes: 12,421 (−10) · 12,433 (+2)

Divisors & multiples

All divisors (4)
1 · 31 · 401 · 12431
Aliquot sum (sum of proper divisors): 433
Factor pairs (a × b = 12,431)
1 × 12431
31 × 401
First multiples
12,431 · 24,862 (double) · 37,293 · 49,724 · 62,155 · 74,586 · 87,017 · 99,448 · 111,879 · 124,310

Sums & aliquot sequence

As consecutive integers: 6,215 + 6,216 386 + 387 + … + 416 170 + 171 + … + 231
Aliquot sequence: 12,431 433 1 0 — terminates at zero

Representations

In words
twelve thousand four hundred thirty-one
Ordinal
12431st
Binary
11000010001111
Octal
30217
Hexadecimal
0x308F
Base64
MI8=
One's complement
53,104 (16-bit)
In other bases
ternary (3) 122001102
quaternary (4) 3002033
quinary (5) 344211
senary (6) 133315
septenary (7) 51146
nonary (9) 18042
undecimal (11) 9381
duodecimal (12) 723b
tridecimal (13) 5873
tetradecimal (14) 475d
pentadecimal (15) 3a3b

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ιβυλαʹ
Mayan (base 20)
𝋡·𝋫·𝋡·𝋫
Chinese
一萬二千四百三十一
Chinese (financial)
壹萬貳仟肆佰參拾壹
In other modern scripts
Eastern Arabic ١٢٤٣١ Devanagari १२४३१ Bengali ১২৪৩১ Tamil ௧௨௪௩௧ Thai ๑๒๔๓๑ Tibetan ༡༢༤༣༡ Khmer ១២៤៣១ Lao ໑໒໔໓໑ Burmese ၁၂၄၃၁

Digit at this position in famous constants

π — Pi (π)
Digit 12,431 = 4
e — Euler's number (e)
Digit 12,431 = 6
φ — Golden ratio (φ)
Digit 12,431 = 3
√2 — Pythagoras's (√2)
Digit 12,431 = 4
ln 2 — Natural log of 2
Digit 12,431 = 7
γ — Euler-Mascheroni (γ)
Digit 12,431 = 1

Also seen as

Unicode codepoint
Hiragana Letter Wa
U+308F
Other letter (Lo)

UTF-8 encoding: E3 82 8F (3 bytes).

Hex color
#00308F
RGB(0, 48, 143)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.48.143.

Address
0.0.48.143
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.48.143

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

Position in π

The digit sequence 12431 first appears in π at position 39,168 of the decimal expansion (the 39,168ordinal-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.