8,142
8,142 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 15
- Digit product
- 64
- Digital root
- 6
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 2,418
- Recamán's sequence
- a(10,483) = 8,142
- Square (n²)
- 66,292,164
- Cube (n³)
- 539,750,799,288
- Divisor count
- 16
- σ(n) — sum of divisors
- 17,280
- φ(n) — Euler's totient
- 2,552
- Sum of prime factors
- 87
Primality
Prime factorization: 2 × 3 × 23 × 59
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eight thousand one hundred forty-two
- Ordinal
- 8142nd
- Binary
- 1111111001110
- Octal
- 17716
- Hexadecimal
- 0x1FCE
- Base64
- H84=
- One's complement
- 57,393 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ηρμβʹ
- Mayan (base 20)
- 𝋡·𝋠·𝋧·𝋢
- Chinese
- 八千一百四十二
- Chinese (financial)
- 捌仟壹佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 8,142 = 7
- e — Euler's number (e)
- Digit 8,142 = 7
- φ — Golden ratio (φ)
- Digit 8,142 = 2
- √2 — Pythagoras's (√2)
- Digit 8,142 = 5
- ln 2 — Natural log of 2
- Digit 8,142 = 2
- γ — Euler-Mascheroni (γ)
- Digit 8,142 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8142, here are decompositions:
- 19 + 8123 = 8142
- 31 + 8111 = 8142
- 41 + 8101 = 8142
- 53 + 8089 = 8142
- 61 + 8081 = 8142
- 73 + 8069 = 8142
- 83 + 8059 = 8142
- 89 + 8053 = 8142
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 BF 8E (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.31.206.
- Address
- 0.0.31.206
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.31.206
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 8142 first appears in π at position 881 of the decimal expansion (the 881ordinal-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.