42,442
42,442 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 16
- Digit product
- 256
- Digital root
- 7
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 24,424
- Recamán's sequence
- a(150,739) = 42,442
- Square (n²)
- 1,801,323,364
- Cube (n³)
- 76,451,766,214,888
- Divisor count
- 4
- σ(n) — sum of divisors
- 63,666
- φ(n) — Euler's totient
- 21,220
- Sum of prime factors
- 21,223
Primality
Prime factorization: 2 × 21221
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand four hundred forty-two
- Ordinal
- 42442nd
- Binary
- 1010010111001010
- Octal
- 122712
- Hexadecimal
- 0xA5CA
- Base64
- pco=
- One's complement
- 23,093 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵μβυμβʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋢·𝋢
- Chinese
- 四萬二千四百四十二
- Chinese (financial)
- 肆萬貳仟肆佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,442 = 9
- e — Euler's number (e)
- Digit 42,442 = 6
- φ — Golden ratio (φ)
- Digit 42,442 = 5
- √2 — Pythagoras's (√2)
- Digit 42,442 = 8
- ln 2 — Natural log of 2
- Digit 42,442 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,442 = 6
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42442, here are decompositions:
- 5 + 42437 = 42442
- 83 + 42359 = 42442
- 149 + 42293 = 42442
- 233 + 42209 = 42442
- 263 + 42179 = 42442
- 311 + 42131 = 42442
- 353 + 42089 = 42442
- 359 + 42083 = 42442
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 97 8A (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.202.
- Address
- 0.0.165.202
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.202
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42442 first appears in π at position 275,372 of the decimal expansion (the 275,372ordinal-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.