71,142
71,142 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 15
- Digit product
- 56
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,117
- Recamán's sequence
- a(129,315) = 71,142
- Square (n²)
- 5,061,184,164
- Cube (n³)
- 360,062,763,795,288
- Divisor count
- 16
- σ(n) — sum of divisors
- 145,152
- φ(n) — Euler's totient
- 23,240
- Sum of prime factors
- 243
Primality
Prime factorization: 2 × 3 × 71 × 167
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- seventy-one thousand one hundred forty-two
- Ordinal
- 71142nd
- Binary
- 10001010111100110
- Octal
- 212746
- Hexadecimal
- 0x115E6
- Base64
- ARXm
- One's complement
- 4,294,896,153 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵οαρμβʹ
- Mayan (base 20)
- 𝋨·𝋱·𝋱·𝋢
- Chinese
- 七萬一千一百四十二
- Chinese (financial)
- 柒萬壹仟壹佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 71,142 = 9
- e — Euler's number (e)
- Digit 71,142 = 8
- φ — Golden ratio (φ)
- Digit 71,142 = 7
- √2 — Pythagoras's (√2)
- Digit 71,142 = 0
- ln 2 — Natural log of 2
- Digit 71,142 = 6
- γ — Euler-Mascheroni (γ)
- Digit 71,142 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 71142, here are decompositions:
- 13 + 71129 = 71142
- 23 + 71119 = 71142
- 53 + 71089 = 71142
- 61 + 71081 = 71142
- 73 + 71069 = 71142
- 83 + 71059 = 71142
- 103 + 71039 = 71142
- 131 + 71011 = 71142
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.21.230.
- Address
- 0.1.21.230
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.21.230
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 71142 first appears in π at position 120,559 of the decimal expansion (the 120,559ordinal-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.