31,242
31,242 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 12
- Digit product
- 48
- Digital root
- 3
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 24,213
- Recamán's sequence
- a(31,179) = 31,242
- Square (n²)
- 976,062,564
- Cube (n³)
- 30,494,146,624,488
- Divisor count
- 16
- σ(n) — sum of divisors
- 64,512
- φ(n) — Euler's totient
- 10,080
- Sum of prime factors
- 173
Primality
Prime factorization: 2 × 3 × 41 × 127
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirty-one thousand two hundred forty-two
- Ordinal
- 31242nd
- Binary
- 111101000001010
- Octal
- 75012
- Hexadecimal
- 0x7A0A
- Base64
- ego=
- One's complement
- 34,293 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵λασμβʹ
- Mayan (base 20)
- 𝋣·𝋲·𝋢·𝋢
- Chinese
- 三萬一千二百四十二
- Chinese (financial)
- 參萬壹仟貳佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 31,242 = 8
- e — Euler's number (e)
- Digit 31,242 = 8
- φ — Golden ratio (φ)
- Digit 31,242 = 3
- √2 — Pythagoras's (√2)
- Digit 31,242 = 1
- ln 2 — Natural log of 2
- Digit 31,242 = 1
- γ — Euler-Mascheroni (γ)
- Digit 31,242 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31242, here are decompositions:
- 5 + 31237 = 31242
- 11 + 31231 = 31242
- 19 + 31223 = 31242
- 23 + 31219 = 31242
- 53 + 31189 = 31242
- 59 + 31183 = 31242
- 61 + 31181 = 31242
- 83 + 31159 = 31242
Showing the first eight; more decompositions exist.
UTF-8 encoding: E7 A8 8A (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.122.10.
- Address
- 0.0.122.10
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.122.10
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 31242 first appears in π at position 382,546 of the decimal expansion (the 382,546ordinal-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.