42,542
42,542 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 17
- Digit product
- 320
- Digital root
- 8
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 24,524
- Square (n²)
- 1,809,821,764
- Cube (n³)
- 76,993,437,484,088
- Divisor count
- 8
- σ(n) — sum of divisors
- 64,800
- φ(n) — Euler's totient
- 20,944
- Sum of prime factors
- 330
Primality
Prime factorization: 2 × 89 × 239
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand five hundred forty-two
- Ordinal
- 42542nd
- Binary
- 1010011000101110
- Octal
- 123056
- Hexadecimal
- 0xA62E
- Base64
- pi4=
- One's complement
- 22,993 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵μβφμβʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋧·𝋢
- Chinese
- 四萬二千五百四十二
- Chinese (financial)
- 肆萬貳仟伍佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,542 = 9
- e — Euler's number (e)
- Digit 42,542 = 1
- φ — Golden ratio (φ)
- Digit 42,542 = 1
- √2 — Pythagoras's (√2)
- Digit 42,542 = 3
- ln 2 — Natural log of 2
- Digit 42,542 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,542 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42542, here are decompositions:
- 43 + 42499 = 42542
- 79 + 42463 = 42542
- 109 + 42433 = 42542
- 139 + 42403 = 42542
- 151 + 42391 = 42542
- 163 + 42379 = 42542
- 193 + 42349 = 42542
- 211 + 42331 = 42542
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.46.
- Address
- 0.0.166.46
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.166.46
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42542 first appears in π at position 90,056 of the decimal expansion (the 90,056ordinal-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.