71,442
71,442 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 18
- Digit product
- 224
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,417
- Recamán's sequence
- a(128,715) = 71,442
- Square (n²)
- 5,103,959,364
- Cube (n³)
- 364,637,064,882,888
- Divisor count
- 42
- σ(n) — sum of divisors
- 186,903
- φ(n) — Euler's totient
- 20,412
- Sum of prime factors
- 34
Primality
Prime factorization: 2 × 3 6 × 7 2
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- seventy-one thousand four hundred forty-two
- Ordinal
- 71442nd
- Binary
- 10001011100010010
- Octal
- 213422
- Hexadecimal
- 0x11712
- Base64
- ARcS
- One's complement
- 4,294,895,853 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵οαυμβʹ
- Mayan (base 20)
- 𝋨·𝋲·𝋬·𝋢
- Chinese
- 七萬一千四百四十二
- Chinese (financial)
- 柒萬壹仟肆佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 71,442 = 8
- e — Euler's number (e)
- Digit 71,442 = 5
- φ — Golden ratio (φ)
- Digit 71,442 = 6
- √2 — Pythagoras's (√2)
- Digit 71,442 = 5
- ln 2 — Natural log of 2
- Digit 71,442 = 0
- γ — Euler-Mascheroni (γ)
- Digit 71,442 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 71442, here are decompositions:
- 5 + 71437 = 71442
- 13 + 71429 = 71442
- 23 + 71419 = 71442
- 29 + 71413 = 71442
- 31 + 71411 = 71442
- 43 + 71399 = 71442
- 53 + 71389 = 71442
- 79 + 71363 = 71442
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 91 9C 92 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.23.18.
- Address
- 0.1.23.18
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.23.18
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 71442 first appears in π at position 270,499 of the decimal expansion (the 270,499ordinal-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.