42,168
42,168 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 21
- Digit product
- 384
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 86,124
- Recamán's sequence
- a(151,287) = 42,168
- Square (n²)
- 1,778,140,224
- Cube (n³)
- 74,980,616,965,632
- Divisor count
- 32
- σ(n) — sum of divisors
- 120,960
- φ(n) — Euler's totient
- 12,000
- Sum of prime factors
- 267
Primality
Prime factorization: 2 3 × 3 × 7 × 251
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand one hundred sixty-eight
- Ordinal
- 42168th
- Binary
- 1010010010111000
- Octal
- 122270
- Hexadecimal
- 0xA4B8
- Base64
- pLg=
- One's complement
- 23,367 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβρξηʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋨·𝋨
- Chinese
- 四萬二千一百六十八
- Chinese (financial)
- 肆萬貳仟壹佰陸拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,168 = 0
- e — Euler's number (e)
- Digit 42,168 = 0
- φ — Golden ratio (φ)
- Digit 42,168 = 7
- √2 — Pythagoras's (√2)
- Digit 42,168 = 8
- ln 2 — Natural log of 2
- Digit 42,168 = 5
- γ — Euler-Mascheroni (γ)
- Digit 42,168 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42168, here are decompositions:
- 11 + 42157 = 42168
- 29 + 42139 = 42168
- 37 + 42131 = 42168
- 67 + 42101 = 42168
- 79 + 42089 = 42168
- 97 + 42071 = 42168
- 107 + 42061 = 42168
- 149 + 42019 = 42168
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 92 B8 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.184.
- Address
- 0.0.164.184
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.184
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42168 first appears in π at position 305,987 of the decimal expansion (the 305,987ordinal-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.