10,081
10,081 is a composite number, odd.
10,081 (ten thousand eighty-one) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 17 × 593. Written other ways, in hexadecimal, 0x2761.
Interestingness
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
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√10,081 = [100; (2, 2, 9, 6, 5, 1, 11, 1, 2, 2, 12, 1, 24, 5, 1, 2, 3, 3, 2, 1, 5, 24, 1, 12, …)]
Period length 35 — the block in parentheses repeats forever.
Representations
- In words
- ten thousand eighty-one
- Ordinal
- 10081st
- Binary
- 10011101100001
- Octal
- 23541
- Hexadecimal
- 0x2761
- Base64
- J2E=
- One's complement
- 55,454 (16-bit)
- Scientific notation
- 1.0081 × 10⁴
- As a duration
- 10,081 s = 2 hours, 48 minutes, 1 second
As an angle
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
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
UTF-8 encoding: E2 9D A1 (3 bytes).
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.
Heard as a frequency, 10,081 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D♯9 (9956.1 Hz, +22¢)
- Scientific pitch (C4 = 256 Hz): E9 (10321.3 Hz, -41¢)
- Baroque pitch (A4 = 415 Hz): E9 (9948.8 Hz, +23¢)
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.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.