13,365
13,365 is a composite number, odd.
13,365 (thirteen thousand three hundred sixty-five) is an odd 5-digit number. It is a composite number with 24 divisors, and factors as 3⁵ × 5 × 11. Written other ways, in hexadecimal, 0x3435.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 18
- Digit product
- 270
- Digital root
- 9
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 56,331
- Recamán's sequence
- a(47,545) = 13,365
- Square (n²)
- 178,623,225
- Cube (n³)
- 2,387,299,402,125
- Divisor count
- 24
- σ(n) — sum of divisors
- 26,208
- φ(n) — Euler's totient
- 6,480
- Sum of prime factors
- 31
Primality
Prime factorization: 3 5 × 5 × 11
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,365 = [115; (1, 1, 1, 1, 5, 25, 1, 1, 20, 1, 1, 25, 5, 1, 1, 1, 1, 230)]
Period length 18 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand three hundred sixty-five
- Ordinal
- 13365th
- Binary
- 11010000110101
- Octal
- 32065
- Hexadecimal
- 0x3435
- Base64
- NDU=
- One's complement
- 52,170 (16-bit)
- Scientific notation
- 1.3365 × 10⁴
- As a duration
- 13,365 s = 3 hours, 42 minutes, 45 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγτξεʹ
- Mayan (base 20)
- 𝋡·𝋭·𝋨·𝋥
- Chinese
- 一萬三千三百六十五
- Chinese (financial)
- 壹萬參仟參佰陸拾伍
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,365 = 6
- e — Euler's number (e)
- Digit 13,365 = 4
- φ — Golden ratio (φ)
- Digit 13,365 = 1
- √2 — Pythagoras's (√2)
- Digit 13,365 = 9
- ln 2 — Natural log of 2
- Digit 13,365 = 7
- γ — Euler-Mascheroni (γ)
- Digit 13,365 = 2
Also seen as
UTF-8 encoding: E3 90 B5 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.53.
- Address
- 0.0.52.53
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.52.53
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,365 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, +10¢)
- Scientific pitch (C4 = 256 Hz): G♯9 (13004 Hz, +47¢ — about midway to A9)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, +11¢)
The digit sequence 13365 first appears in π at position 51,928 of the decimal expansion (the 51,928ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.