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80,091

80,091 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 Evil Number Flippable Recamán's Sequence

Properties

Parity
Odd
Digit count
5
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
19,008
Flips to (rotate 180°)
16,008
Recamán's sequence
a(119,925) = 80,091
Square (n²)
6,414,568,281
Cube (n³)
513,749,188,193,571
Divisor count
12
σ(n) — sum of divisors
126,360
φ(n) — Euler's totient
48,480
Sum of prime factors
826

Primality

Prime factorization: 3 2 × 11 × 809

Nearest primes: 80,077 (−14) · 80,107 (+16)

Divisors & multiples

All divisors (12)
1 · 3 · 9 · 11 · 33 · 99 · 809 · 2427 · 7281 · 8899 · 26697 · 80091
Aliquot sum (sum of proper divisors): 46,269
Factor pairs (a × b = 80,091)
1 × 80091
3 × 26697
9 × 8899
11 × 7281
33 × 2427
99 × 809
First multiples
80,091 · 160,182 (double) · 240,273 · 320,364 · 400,455 · 480,546 · 560,637 · 640,728 · 720,819 · 800,910

Sums & aliquot sequence

As consecutive integers: 40,045 + 40,046 26,696 + 26,697 + 26,698 13,346 + 13,347 + 13,348 + 13,349 + 13,350 + 13,351 8,895 + 8,896 + … + 8,903
Aliquot sequence: 80,091 46,269 22,527 10,025 2,437 1 0 — terminates at zero

Representations

In words
eighty thousand ninety-one
Ordinal
80091st
Binary
10011100011011011
Octal
234333
Hexadecimal
0x138DB
Base64
ATjb
One's complement
4,294,887,204 (32-bit)
In other bases
ternary (3) 11001212100
quaternary (4) 103203123
quinary (5) 10030331
senary (6) 1414443
septenary (7) 452334
nonary (9) 131770
undecimal (11) 551a0
duodecimal (12) 3a423
tridecimal (13) 2a5bb
tetradecimal (14) 2128b
pentadecimal (15) 18ae6

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵πϟαʹ
Mayan (base 20)
𝋪·𝋠·𝋤·𝋫
Chinese
八萬零九十一
Chinese (financial)
捌萬零玖拾壹
In other modern scripts
Eastern Arabic ٨٠٠٩١ Devanagari ८००९१ Bengali ৮০০৯১ Tamil ௮௦௦௯௧ Thai ๘๐๐๙๑ Tibetan ༨༠༠༩༡ Khmer ៨០០៩១ Lao ໘໐໐໙໑ Burmese ၈၀၀၉၁

Digit at this position in famous constants

π — Pi (π)
Digit 80,091 = 3
e — Euler's number (e)
Digit 80,091 = 0
φ — Golden ratio (φ)
Digit 80,091 = 2
√2 — Pythagoras's (√2)
Digit 80,091 = 7
ln 2 — Natural log of 2
Digit 80,091 = 3
γ — Euler-Mascheroni (γ)
Digit 80,091 = 5

Also seen as

Unicode codepoint
𓣛
Egyptian Hieroglyph-138Db
U+138DB
Other letter (Lo)

UTF-8 encoding: F0 93 A3 9B (4 bytes).

Hex color
#0138DB
RGB(1, 56, 219)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.56.219.

Address
0.1.56.219
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.56.219

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
000080091
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 80091 first appears in π at position 104,610 of the decimal expansion (the 104,610ordinal-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.