13,660
13,660 is a composite number, even.
13,660 (thirteen thousand six hundred sixty) is an even 5-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 683. Its proper divisors sum to 15,068, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x355C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 6,631
- Recamán's sequence
- a(4,092) = 13,660
- Square (n²)
- 186,595,600
- Cube (n³)
- 2,548,895,896,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 28,728
- φ(n) — Euler's totient
- 5,456
- Sum of prime factors
- 692
Primality
Prime factorization: 2 2 × 5 × 683
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,660 = [116; (1, 7, 15, 2, 5, 1, 1, 25, 2, 3, 9, 2, 4, 1, 5, 5, 1, 2, 20, 1, 8, 1, 3, 1, …)]
Representations
- In words
- thirteen thousand six hundred sixty
- Ordinal
- 13660th
- Binary
- 11010101011100
- Octal
- 32534
- Hexadecimal
- 0x355C
- Base64
- NVw=
- One's complement
- 51,875 (16-bit)
- Scientific notation
- 1.366 × 10⁴
- As a duration
- 13,660 s = 3 hours, 47 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ιγχξʹ
- Mayan (base 20)
- 𝋡·𝋮·𝋣·𝋠
- Chinese
- 一萬三千六百六十
- Chinese (financial)
- 壹萬參仟陸佰陸拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,660 = 5
- e — Euler's number (e)
- Digit 13,660 = 0
- φ — Golden ratio (φ)
- Digit 13,660 = 2
- √2 — Pythagoras's (√2)
- Digit 13,660 = 4
- ln 2 — Natural log of 2
- Digit 13,660 = 3
- γ — Euler-Mascheroni (γ)
- Digit 13,660 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13660, here are decompositions:
- 11 + 13649 = 13660
- 41 + 13619 = 13660
- 47 + 13613 = 13660
- 83 + 13577 = 13660
- 107 + 13553 = 13660
- 137 + 13523 = 13660
- 173 + 13487 = 13660
- 191 + 13469 = 13660
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 95 9C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.53.92.
- Address
- 0.0.53.92
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.53.92
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,660 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, +48¢ — about midway to A9)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, -15¢)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, +49¢ — about midway to A♯9)
The digit sequence 13660 first appears in π at position 141,797 of the decimal expansion (the 141,797ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.