13,455
13,455 is a composite number, odd.
13,455 (thirteen thousand four hundred fifty-five) is an odd 5-digit number. It is a composite number with 24 divisors, and factors as 3² × 5 × 13 × 23. Written other ways, in hexadecimal, 0x348F.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 18
- Digit product
- 300
- Digital root
- 9
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 55,431
- Recamán's sequence
- a(47,365) = 13,455
- Square (n²)
- 181,037,025
- Cube (n³)
- 2,435,853,171,375
- Divisor count
- 24
- σ(n) — sum of divisors
- 26,208
- φ(n) — Euler's totient
- 6,336
- Sum of prime factors
- 47
Primality
Prime factorization: 3 2 × 5 × 13 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,455 = [115; (1, 230)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand four hundred fifty-five
- Ordinal
- 13455th
- Binary
- 11010010001111
- Octal
- 32217
- Hexadecimal
- 0x348F
- Base64
- NI8=
- One's complement
- 52,080 (16-bit)
- Scientific notation
- 1.3455 × 10⁴
- As a duration
- 13,455 s = 3 hours, 44 minutes, 15 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγυνεʹ
- Mayan (base 20)
- 𝋡·𝋭·𝋬·𝋯
- Chinese
- 一萬三千四百五十五
- Chinese (financial)
- 壹萬參仟肆佰伍拾伍
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,455 = 1
- e — Euler's number (e)
- Digit 13,455 = 2
- φ — Golden ratio (φ)
- Digit 13,455 = 3
- √2 — Pythagoras's (√2)
- Digit 13,455 = 2
- ln 2 — Natural log of 2
- Digit 13,455 = 9
- γ — Euler-Mascheroni (γ)
- Digit 13,455 = 5
Also seen as
UTF-8 encoding: E3 92 8F (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.143.
- Address
- 0.0.52.143
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.52.143
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,455 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, +21¢)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, -41¢)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, +23¢)
The digit sequence 13455 first appears in π at position 9,392 of the decimal expansion (the 9,392ordinal-suffix:nd 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.