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80,813

80,813 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 Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
31,808
Recamán's sequence
a(118,481) = 80,813
Square (n²)
6,530,740,969
Cube (n³)
527,768,769,927,797
Divisor count
4
σ(n) — sum of divisors
81,408
φ(n) — Euler's totient
80,220
Sum of prime factors
594

Primality

Prime factorization: 211 × 383

Nearest primes: 80,809 (−4) · 80,819 (+6)

Divisors & multiples

All divisors (4)
1 · 211 · 383 · 80813
Aliquot sum (sum of proper divisors): 595
Factor pairs (a × b = 80,813)
1 × 80813
211 × 383
First multiples
80,813 · 161,626 (double) · 242,439 · 323,252 · 404,065 · 484,878 · 565,691 · 646,504 · 727,317 · 808,130

Sums & aliquot sequence

As consecutive integers: 40,406 + 40,407 278 + 279 + … + 488 20 + 21 + … + 402
Aliquot sequence: 80,813 595 269 1 0 — terminates at zero

Representations

In words
eighty thousand eight hundred thirteen
Ordinal
80813th
Binary
10011101110101101
Octal
235655
Hexadecimal
0x13BAD
Base64
ATut
One's complement
4,294,886,482 (32-bit)
In other bases
ternary (3) 11002212002
quaternary (4) 103232231
quinary (5) 10041223
senary (6) 1422045
septenary (7) 454415
nonary (9) 132762
undecimal (11) 55797
duodecimal (12) 3a925
tridecimal (13) 2aa25
tetradecimal (14) 21645
pentadecimal (15) 18e28

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺
Greek (Milesian)
͵πωιγʹ
Mayan (base 20)
𝋪·𝋢·𝋠·𝋭
Chinese
八萬零八百一十三
Chinese (financial)
捌萬零捌佰壹拾參
In other modern scripts
Eastern Arabic ٨٠٨١٣ Devanagari ८०८१३ Bengali ৮০৮১৩ Tamil ௮௦௮௧௩ Thai ๘๐๘๑๓ Tibetan ༨༠༨༡༣ Khmer ៨០៨១៣ Lao ໘໐໘໑໓ Burmese ၈၀၈၁၃

Digit at this position in famous constants

π — Pi (π)
Digit 80,813 = 7
e — Euler's number (e)
Digit 80,813 = 1
φ — Golden ratio (φ)
Digit 80,813 = 5
√2 — Pythagoras's (√2)
Digit 80,813 = 7
ln 2 — Natural log of 2
Digit 80,813 = 4
γ — Euler-Mascheroni (γ)
Digit 80,813 = 7

Also seen as

Unicode codepoint
𓮭
Egyptian Hieroglyph-13Bad
U+13BAD
Other letter (Lo)

UTF-8 encoding: F0 93 AE AD (4 bytes).

Hex color
#013BAD
RGB(1, 59, 173)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.59.173.

Address
0.1.59.173
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.59.173

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

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000080813
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Position in π

The digit sequence 80813 first appears in π at position 150,940 of the decimal expansion (the 150,940ordinal-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.