13,801
13,801 is a composite number, odd.
13,801 (thirteen thousand eight hundred one) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 37 × 373. Written other ways, in hexadecimal, 0x35E9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 10,831
- Recamán's sequence
- a(21,114) = 13,801
- Square (n²)
- 190,467,601
- Cube (n³)
- 2,628,643,361,401
- Divisor count
- 4
- σ(n) — sum of divisors
- 14,212
- φ(n) — Euler's totient
- 13,392
- Sum of prime factors
- 410
Primality
Prime factorization: 37 × 373
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,801 = [117; (2, 10, 1, 2, 4, 1, 1, 4, 2, 1, 10, 2, 234)]
Period length 13 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand eight hundred one
- Ordinal
- 13801st
- Binary
- 11010111101001
- Octal
- 32751
- Hexadecimal
- 0x35E9
- Base64
- Nek=
- One's complement
- 51,734 (16-bit)
- Scientific notation
- 1.3801 × 10⁴
- As a duration
- 13,801 s = 3 hours, 50 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺
- Greek (Milesian)
- ͵ιγωαʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋪·𝋡
- Chinese
- 一萬三千八百零一
- Chinese (financial)
- 壹萬參仟捌佰零壹
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,801 = 8
- e — Euler's number (e)
- Digit 13,801 = 4
- φ — Golden ratio (φ)
- Digit 13,801 = 2
- √2 — Pythagoras's (√2)
- Digit 13,801 = 3
- ln 2 — Natural log of 2
- Digit 13,801 = 2
- γ — Euler-Mascheroni (γ)
- Digit 13,801 = 5
Also seen as
UTF-8 encoding: E3 97 A9 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.53.233.
- Address
- 0.0.53.233
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.53.233
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,801 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A9 (14080 Hz, -35¢)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, +3¢)
- Baroque pitch (A4 = 415 Hz): A♯9 (14069.7 Hz, -33¢)
The digit sequence 13801 first appears in π at position 53,526 of the decimal expansion (the 53,526ordinal-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.