47,942
47,942 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 26
- Digit product
- 2,016
- Digital root
- 8
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 24,974
- Recamán's sequence
- a(66,008) = 47,942
- Square (n²)
- 2,298,435,364
- Cube (n³)
- 110,191,588,220,888
- Divisor count
- 4
- σ(n) — sum of divisors
- 71,916
- φ(n) — Euler's totient
- 23,970
- Sum of prime factors
- 23,973
Primality
Prime factorization: 2 × 23971
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-seven thousand nine hundred forty-two
- Ordinal
- 47942nd
- Binary
- 1011101101000110
- Octal
- 135506
- Hexadecimal
- 0xBB46
- Base64
- u0Y=
- One's complement
- 17,593 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵μζϡμβʹ
- Mayan (base 20)
- 𝋥·𝋳·𝋱·𝋢
- Chinese
- 四萬七千九百四十二
- Chinese (financial)
- 肆萬柒仟玖佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 47,942 = 1
- e — Euler's number (e)
- Digit 47,942 = 3
- φ — Golden ratio (φ)
- Digit 47,942 = 1
- √2 — Pythagoras's (√2)
- Digit 47,942 = 2
- ln 2 — Natural log of 2
- Digit 47,942 = 2
- γ — Euler-Mascheroni (γ)
- Digit 47,942 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 47942, here are decompositions:
- 3 + 47939 = 47942
- 31 + 47911 = 47942
- 61 + 47881 = 47942
- 73 + 47869 = 47942
- 151 + 47791 = 47942
- 163 + 47779 = 47942
- 199 + 47743 = 47942
- 229 + 47713 = 47942
Showing the first eight; more decompositions exist.
UTF-8 encoding: EB AD 86 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.187.70.
- Address
- 0.0.187.70
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.187.70
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 47942 first appears in π at position 71,739 of the decimal expansion (the 71,739ordinal-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.