13,609
13,609 is a composite number, odd.
13,609 (thirteen thousand six hundred nine) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 31 × 439. Written other ways, in hexadecimal, 0x3529.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 90,631
- Recamán's sequence
- a(3,990) = 13,609
- Square (n²)
- 185,204,881
- Cube (n³)
- 2,520,453,225,529
- Divisor count
- 4
- σ(n) — sum of divisors
- 14,080
- φ(n) — Euler's totient
- 13,140
- Sum of prime factors
- 470
Primality
Prime factorization: 31 × 439
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,609 = [116; (1, 1, 1, 11, 1, 1, 1, 1, 2, 2, 1, 5, 1, 25, 13, 1, 2, 5, 2, 28, 1, 2, 2, 2, …)]
Representations
- In words
- thirteen thousand six hundred nine
- Ordinal
- 13609th
- Binary
- 11010100101001
- Octal
- 32451
- Hexadecimal
- 0x3529
- Base64
- NSk=
- One's complement
- 51,926 (16-bit)
- Scientific notation
- 1.3609 × 10⁴
- As a duration
- 13,609 s = 3 hours, 46 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγχθʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋠·𝋩
- Chinese
- 一萬三千六百零九
- Chinese (financial)
- 壹萬參仟陸佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,609 = 2
- e — Euler's number (e)
- Digit 13,609 = 5
- φ — Golden ratio (φ)
- Digit 13,609 = 9
- √2 — Pythagoras's (√2)
- Digit 13,609 = 2
- ln 2 — Natural log of 2
- Digit 13,609 = 7
- γ — Euler-Mascheroni (γ)
- Digit 13,609 = 4
Also seen as
UTF-8 encoding: E3 94 A9 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.53.41.
- Address
- 0.0.53.41
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.53.41
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,609 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, +41¢)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, -21¢)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, +42¢)
The digit sequence 13609 first appears in π at position 71,061 of the decimal expansion (the 71,061ordinal-suffix:st 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.