13,109
13,109 is a prime, odd.
13,109 (thirteen thousand one hundred nine) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x3335.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 90,131
- Recamán's sequence
- a(48,057) = 13,109
- Square (n²)
- 171,845,881
- Cube (n³)
- 2,252,727,654,029
- Divisor count
- 2
- σ(n) — sum of divisors
- 13,110
- φ(n) — Euler's totient
- 13,108
Primality
13,109 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,109 = [114; (2, 45, 3, 2, 1, 8, 2, 5, 1, 2, 1, 1, 10, 1, 6, 1, 56, 2, 1, 2, 11, 13, 2, 1, …)]
Period length 53 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand one hundred nine
- Ordinal
- 13109th
- Binary
- 11001100110101
- Octal
- 31465
- Hexadecimal
- 0x3335
- Base64
- MzU=
- One's complement
- 52,426 (16-bit)
- Scientific notation
- 1.3109 × 10⁴
- As a duration
- 13,109 s = 3 hours, 38 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγρθʹ
- Mayan (base 20)
- 𝋡·𝋬·𝋯·𝋩
- Chinese
- 一萬三千一百零九
- Chinese (financial)
- 壹萬參仟壹佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,109 = 5
- e — Euler's number (e)
- Digit 13,109 = 1
- φ — Golden ratio (φ)
- Digit 13,109 = 4
- √2 — Pythagoras's (√2)
- Digit 13,109 = 3
- ln 2 — Natural log of 2
- Digit 13,109 = 4
- γ — Euler-Mascheroni (γ)
- Digit 13,109 = 5
Also seen as
UTF-8 encoding: E3 8C B5 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.51.53.
- Address
- 0.0.51.53
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.51.53
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,109 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, -24¢)
- Scientific pitch (C4 = 256 Hz): G♯9 (13004 Hz, +14¢)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, -22¢)
The digit sequence 13109 first appears in π at position 170,720 of the decimal expansion (the 170,720ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.