42,904
42,904 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 40,924
- Recamán's sequence
- a(72,784) = 42,904
- Square (n²)
- 1,840,753,216
- Cube (n³)
- 78,975,675,979,264
- Divisor count
- 16
- σ(n) — sum of divisors
- 83,520
- φ(n) — Euler's totient
- 20,640
- Sum of prime factors
- 210
Primality
Prime factorization: 2 3 × 31 × 173
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand nine hundred four
- Ordinal
- 42904th
- Binary
- 1010011110011000
- Octal
- 123630
- Hexadecimal
- 0xA798
- Base64
- p5g=
- One's complement
- 22,631 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβϡδʹ
- Mayan (base 20)
- 𝋥·𝋧·𝋥·𝋤
- Chinese
- 四萬二千九百零四
- Chinese (financial)
- 肆萬貳仟玖佰零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,904 = 0
- e — Euler's number (e)
- Digit 42,904 = 3
- φ — Golden ratio (φ)
- Digit 42,904 = 7
- √2 — Pythagoras's (√2)
- Digit 42,904 = 4
- ln 2 — Natural log of 2
- Digit 42,904 = 4
- γ — Euler-Mascheroni (γ)
- Digit 42,904 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42904, here are decompositions:
- 3 + 42901 = 42904
- 5 + 42899 = 42904
- 41 + 42863 = 42904
- 83 + 42821 = 42904
- 107 + 42797 = 42904
- 131 + 42773 = 42904
- 137 + 42767 = 42904
- 167 + 42737 = 42904
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 9E 98 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.152.
- Address
- 0.0.167.152
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.167.152
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42904 first appears in π at position 195,515 of the decimal expansion (the 195,515ordinal-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.