10,261
10,261 is a composite number, odd.
10,261 (ten thousand two hundred sixty-one) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 31 × 331. Written other ways, in hexadecimal, 0x2815.
Interestingness
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
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√10,261 = [101; (3, 2, 1, 2, 4, 4, 3, 1, 1, 1, 14, 1, 17, 2, 13, 50, 1, 1, 2, 1, 6, 1, 3, 1, …)]
Period length 56 — the block in parentheses repeats forever.
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)
- Scientific notation
- 1.0261 × 10⁴
- As a duration
- 10,261 s = 2 hours, 51 minutes, 1 second
As an angle
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
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
UTF-8 encoding: E2 A0 95 (3 bytes).
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.
Heard as a frequency, 10,261 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E9 (10548.1 Hz, -48¢ — about midway to D♯9)
- Scientific pitch (C4 = 256 Hz): E9 (10321.3 Hz, -10¢)
- Baroque pitch (A4 = 415 Hz): F9 (10540.3 Hz, -47¢ — about midway to E9)
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.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.