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10,081

10,081 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 Flippable Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
14 bits
Reversed
18,001
Flips to (rotate 180°)
18,001
Recamán's sequence
a(4,949) = 10,081
Square (n²)
101,626,561
Cube (n³)
1,024,497,361,441
Divisor count
4
σ(n) — sum of divisors
10,692
φ(n) — Euler's totient
9,472
Sum of prime factors
610

Primality

Prime factorization: 17 × 593

Nearest primes: 10,079 (−2) · 10,091 (+10)

Divisors & multiples

All divisors (4)
1 · 17 · 593 · 10081
Aliquot sum (sum of proper divisors): 611
Factor pairs (a × b = 10,081)
1 × 10081
17 × 593
First multiples
10,081 · 20,162 (double) · 30,243 · 40,324 · 50,405 · 60,486 · 70,567 · 80,648 · 90,729 · 100,810

Sums & aliquot sequence

As a sum of two squares: 9² + 100² = 55² + 84²
As consecutive integers: 5,040 + 5,041 585 + 586 + … + 601 280 + 281 + … + 313
Aliquot sequence: 10,081 611 61 1 0 — terminates at zero

Representations

In words
ten thousand eighty-one
Ordinal
10081st
Binary
10011101100001
Octal
23541
Hexadecimal
0x2761
Base64
J2E=
One's complement
55,454 (16-bit)
In other bases
ternary (3) 111211101
quaternary (4) 2131201
quinary (5) 310311
senary (6) 114401
septenary (7) 41251
nonary (9) 14741
undecimal (11) 7635
duodecimal (12) 5a01
tridecimal (13) 4786
tetradecimal (14) 3961
pentadecimal (15) 2ec1

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓂍𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ιπαʹ
Mayan (base 20)
𝋡·𝋥·𝋤·𝋡
Chinese
一萬零八十一
Chinese (financial)
壹萬零捌拾壹
In other modern scripts
Eastern Arabic ١٠٠٨١ Devanagari १००८१ Bengali ১০০৮১ Tamil ௧௦௦௮௧ Thai ๑๐๐๘๑ Tibetan ༡༠༠༨༡ Khmer ១០០៨១ Lao ໑໐໐໘໑ Burmese ၁၀၀၈၁

Digit at this position in famous constants

π — Pi (π)
Digit 10,081 = 0
e — Euler's number (e)
Digit 10,081 = 8
φ — Golden ratio (φ)
Digit 10,081 = 4
√2 — Pythagoras's (√2)
Digit 10,081 = 0
ln 2 — Natural log of 2
Digit 10,081 = 6
γ — Euler-Mascheroni (γ)
Digit 10,081 = 6

Also seen as

Unicode codepoint
Curved Stem Paragraph Sign Ornament
U+2761
Other symbol (So)

UTF-8 encoding: E2 9D A1 (3 bytes).

Hex color
#002761
RGB(0, 39, 97)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.39.97.

Address
0.0.39.97
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.39.97

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

Position in π

The digit sequence 10081 first appears in π at position 101,736 of the decimal expansion (the 101,736ordinal-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.