71,242
71,242 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 16
- Digit product
- 112
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,217
- Recamán's sequence
- a(129,115) = 71,242
- Square (n²)
- 5,075,422,564
- Cube (n³)
- 361,583,254,304,488
- Divisor count
- 8
- σ(n) — sum of divisors
- 108,000
- φ(n) — Euler's totient
- 35,244
- Sum of prime factors
- 380
Primality
Prime factorization: 2 × 179 × 199
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- seventy-one thousand two hundred forty-two
- Ordinal
- 71242nd
- Binary
- 10001011001001010
- Octal
- 213112
- Hexadecimal
- 0x1164A
- Base64
- ARZK
- One's complement
- 4,294,896,053 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵οασμβʹ
- Mayan (base 20)
- 𝋨·𝋲·𝋢·𝋢
- Chinese
- 七萬一千二百四十二
- Chinese (financial)
- 柒萬壹仟貳佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 71,242 = 3
- e — Euler's number (e)
- Digit 71,242 = 3
- φ — Golden ratio (φ)
- Digit 71,242 = 2
- √2 — Pythagoras's (√2)
- Digit 71,242 = 8
- ln 2 — Natural log of 2
- Digit 71,242 = 1
- γ — Euler-Mascheroni (γ)
- Digit 71,242 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 71242, here are decompositions:
- 5 + 71237 = 71242
- 71 + 71171 = 71242
- 89 + 71153 = 71242
- 113 + 71129 = 71242
- 173 + 71069 = 71242
- 251 + 70991 = 71242
- 263 + 70979 = 71242
- 293 + 70949 = 71242
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.22.74.
- Address
- 0.1.22.74
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.22.74
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 71242 first appears in π at position 161,082 of the decimal expansion (the 161,082ordinal-suffix:nd 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.