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10,261

10,261 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
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
14 bits
Reversed
16,201
Recamán's sequence
a(5,781) = 10,261
Square (n²)
105,288,121
Cube (n³)
1,080,361,409,581
Divisor count
4
σ(n) — sum of divisors
10,624
φ(n) — Euler's totient
9,900
Sum of prime factors
362

Primality

Prime factorization: 31 × 331

Nearest primes: 10,259 (−2) · 10,267 (+6)

Divisors & multiples

All divisors (4)
1 · 31 · 331 · 10261
Aliquot sum (sum of proper divisors): 363
Factor pairs (a × b = 10,261)
1 × 10261
31 × 331
First multiples
10,261 · 20,522 (double) · 30,783 · 41,044 · 51,305 · 61,566 · 71,827 · 82,088 · 92,349 · 102,610

Sums & aliquot sequence

As consecutive integers: 5,130 + 5,131 316 + 317 + … + 346 135 + 136 + … + 196
Aliquot sequence: 10,261 363 169 14 10 8 7 1 0 — terminates at zero

Representations

In words
ten thousand two hundred sixty-one
Ordinal
10261st
Binary
10100000010101
Octal
24025
Hexadecimal
0x2815
Base64
KBU=
One's complement
55,274 (16-bit)
In other bases
ternary (3) 112002001
quaternary (4) 2200111
quinary (5) 312021
senary (6) 115301
septenary (7) 41626
nonary (9) 15061
undecimal (11) 7789
duodecimal (12) 5b31
tridecimal (13) 4894
tetradecimal (14) 3a4d
pentadecimal (15) 3091

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒁹
Egyptian hieroglyphic
𓂍𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ισξαʹ
Mayan (base 20)
𝋡·𝋥·𝋭·𝋡
Chinese
一萬零二百六十一
Chinese (financial)
壹萬零貳佰陸拾壹
In other modern scripts
Eastern Arabic ١٠٢٦١ Devanagari १०२६१ Bengali ১০২৬১ Tamil ௧௦௨௬௧ Thai ๑๐๒๖๑ Tibetan ༡༠༢༦༡ Khmer ១០២៦១ Lao ໑໐໒໖໑ Burmese ၁၀၂၆၁

Digit at this position in famous constants

π — Pi (π)
Digit 10,261 = 4
e — Euler's number (e)
Digit 10,261 = 9
φ — Golden ratio (φ)
Digit 10,261 = 7
√2 — Pythagoras's (√2)
Digit 10,261 = 0
ln 2 — Natural log of 2
Digit 10,261 = 4
γ — Euler-Mascheroni (γ)
Digit 10,261 = 8

Also seen as

Unicode codepoint
Braille Pattern Dots-135
U+2815
Other symbol (So)

UTF-8 encoding: E2 A0 95 (3 bytes).

Hex color
#002815
RGB(0, 40, 21)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.40.21.

Address
0.0.40.21
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.40.21

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

Position in π

The digit sequence 10261 first appears in π at position 67,928 of the decimal expansion (the 67,928ordinal-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.