13,442
13,442 is a composite number, even.
13,442 (thirteen thousand four hundred forty-two) is an even 5-digit number. It is a composite number with 16 divisors, and factors as 2 × 11 × 13 × 47. Written other ways, in hexadecimal, 0x3482.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 96
- Digital root
- 5
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 24,431
- Recamán's sequence
- a(47,391) = 13,442
- Square (n²)
- 180,687,364
- Cube (n³)
- 2,428,799,546,888
- Divisor count
- 16
- σ(n) — sum of divisors
- 24,192
- φ(n) — Euler's totient
- 5,520
- Sum of prime factors
- 73
Primality
Prime factorization: 2 × 11 × 13 × 47
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√13,442 = [115; (1, 15, 1, 1, 3, 4, 2, 4, 3, 1, 1, 15, 1, 230)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- thirteen thousand four hundred forty-two
- Ordinal
- 13442nd
- Binary
- 11010010000010
- Octal
- 32202
- Hexadecimal
- 0x3482
- Base64
- NII=
- One's complement
- 52,093 (16-bit)
- Scientific notation
- 1.3442 × 10⁴
- As a duration
- 13,442 s = 3 hours, 44 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ιγυμβʹ
- Mayan (base 20)
- 𝋡·𝋭·𝋬·𝋢
- Chinese
- 一萬三千四百四十二
- Chinese (financial)
- 壹萬參仟肆佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,442 = 4
- e — Euler's number (e)
- Digit 13,442 = 6
- φ — Golden ratio (φ)
- Digit 13,442 = 4
- √2 — Pythagoras's (√2)
- Digit 13,442 = 1
- ln 2 — Natural log of 2
- Digit 13,442 = 5
- γ — Euler-Mascheroni (γ)
- Digit 13,442 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13442, here are decompositions:
- 31 + 13411 = 13442
- 43 + 13399 = 13442
- 61 + 13381 = 13442
- 103 + 13339 = 13442
- 151 + 13291 = 13442
- 193 + 13249 = 13442
- 223 + 13219 = 13442
- 271 + 13171 = 13442
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 92 82 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.130.
- Address
- 0.0.52.130
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.52.130
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 13,442 Hz is closest to:
- Concert pitch (A4 = 440 Hz): G♯9 (13289.8 Hz, +20¢)
- Scientific pitch (C4 = 256 Hz): A9 (13777.2 Hz, -43¢)
- Baroque pitch (A4 = 415 Hz): A9 (13280 Hz, +21¢)
The digit sequence 13442 first appears in π at position 14,412 of the decimal expansion (the 14,412ordinal-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.