13,409
13,409 is a composite number, odd.
13,409 (thirteen thousand four hundred nine) is an odd 5-digit number. It is a composite number with 8 divisors, and factors as 11 × 23 × 53. Written other ways, in hexadecimal, 0x3461.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 90,431
- Recamán's sequence
- a(47,457) = 13,409
- Square (n²)
- 179,801,281
- Cube (n³)
- 2,410,955,376,929
- Divisor count
- 8
- σ(n) — sum of divisors
- 15,552
- φ(n) — Euler's totient
- 11,440
- Sum of prime factors
- 87
Primality
Prime factorization: 11 × 23 × 53
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,409 = [115; (1, 3, 1, 13, 1, 2, 13, 3, 1, 1, 5, 4, 1, 1, 4, 1, 4, 1, 32, 3, 1, 8, 1, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand four hundred nine
- Ordinal
- 13409th
- Binary
- 11010001100001
- Octal
- 32141
- Hexadecimal
- 0x3461
- Base64
- NGE=
- One's complement
- 52,126 (16-bit)
- Scientific notation
- 1.3409 × 10⁴
- As a duration
- 13,409 s = 3 hours, 43 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιγυθʹ
- Mayan (base 20)
- 𝋡·𝋭·𝋪·𝋩
- Chinese
- 一萬三千四百零九
- Chinese (financial)
- 壹萬參仟肆佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,409 = 7
- e — Euler's number (e)
- Digit 13,409 = 5
- φ — Golden ratio (φ)
- Digit 13,409 = 3
- √2 — Pythagoras's (√2)
- Digit 13,409 = 5
- ln 2 — Natural log of 2
- Digit 13,409 = 3
- γ — Euler-Mascheroni (γ)
- Digit 13,409 = 0
Also seen as
UTF-8 encoding: E3 91 A1 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.97.
- Address
- 0.0.52.97
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.52.97
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,409 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, +15¢)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, -47¢ — about midway to G♯9)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, +17¢)
The digit sequence 13409 first appears in π at position 47,464 of the decimal expansion (the 47,464ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.