13,825
13,825 is a composite number, odd.
13,825 (thirteen thousand eight hundred twenty-five) is an odd 5-digit number. It is a composite number with 12 divisors, and factors as 5² × 7 × 79. Written other ways, in hexadecimal, 0x3601.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 240
- Digital root
- 1
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 52,831
- Recamán's sequence
- a(21,066) = 13,825
- Square (n²)
- 191,130,625
- Cube (n³)
- 2,642,380,890,625
- Divisor count
- 12
- σ(n) — sum of divisors
- 19,840
- φ(n) — Euler's totient
- 9,360
- Sum of prime factors
- 96
Primality
Prime factorization: 5 2 × 7 × 79
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,825 = [117; (1, 1, 2, 1, 1, 1, 2, 1, 3, 2, 9, 2, 1, 3, 1, 13, 1, 10, 3, 1, 3, 4, 2, 1, …)]
Representations
- In words
- thirteen thousand eight hundred twenty-five
- Ordinal
- 13825th
- Binary
- 11011000000001
- Octal
- 33001
- Hexadecimal
- 0x3601
- Base64
- NgE=
- One's complement
- 51,710 (16-bit)
- Scientific notation
- 1.3825 × 10⁴
- As a duration
- 13,825 s = 3 hours, 50 minutes, 25 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγωκεʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋫·𝋥
- Chinese
- 一萬三千八百二十五
- Chinese (financial)
- 壹萬參仟捌佰貳拾伍
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,825 = 4
- e — Euler's number (e)
- Digit 13,825 = 4
- φ — Golden ratio (φ)
- Digit 13,825 = 7
- √2 — Pythagoras's (√2)
- Digit 13,825 = 9
- ln 2 — Natural log of 2
- Digit 13,825 = 9
- γ — Euler-Mascheroni (γ)
- Digit 13,825 = 5
Also seen as
UTF-8 encoding: E3 98 81 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.54.1.
- Address
- 0.0.54.1
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.54.1
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,825 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A9 (14080 Hz, -32¢)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, +6¢)
- Baroque pitch (A4 = 415 Hz): A♯9 (14069.7 Hz, -30¢)
The digit sequence 13825 first appears in π at position 61,285 of the decimal expansion (the 61,285ordinal-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.