13,142
13,142 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 24
- Digital root
- 2
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 24,131
- Recamán's sequence
- a(47,991) = 13,142
- Square (n²)
- 172,712,164
- Cube (n³)
- 2,269,783,259,288
- Divisor count
- 4
- σ(n) — sum of divisors
- 19,716
- φ(n) — Euler's totient
- 6,570
- Sum of prime factors
- 6,573
Primality
Prime factorization: 2 × 6571
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand one hundred forty-two
- Ordinal
- 13142nd
- Binary
- 11001101010110
- Octal
- 31526
- Hexadecimal
- 0x3356
- Base64
- M1Y=
- One's complement
- 52,393 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ιγρμβʹ
- Mayan (base 20)
- 𝋡·𝋬·𝋱·𝋢
- Chinese
- 一萬三千一百四十二
- Chinese (financial)
- 壹萬參仟壹佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,142 = 5
- e — Euler's number (e)
- Digit 13,142 = 8
- φ — Golden ratio (φ)
- Digit 13,142 = 0
- √2 — Pythagoras's (√2)
- Digit 13,142 = 0
- ln 2 — Natural log of 2
- Digit 13,142 = 6
- γ — Euler-Mascheroni (γ)
- Digit 13,142 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13142, here are decompositions:
- 43 + 13099 = 13142
- 79 + 13063 = 13142
- 109 + 13033 = 13142
- 139 + 13003 = 13142
- 163 + 12979 = 13142
- 223 + 12919 = 13142
- 313 + 12829 = 13142
- 379 + 12763 = 13142
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 8D 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.51.86.
- Address
- 0.0.51.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.51.86
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 13142 first appears in π at position 8,920 of the decimal expansion (the 8,920ordinal-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.