42,002
42,002 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 20,024
- Recamán's sequence
- a(151,619) = 42,002
- Square (n²)
- 1,764,168,004
- Cube (n³)
- 74,098,584,504,008
- Divisor count
- 4
- σ(n) — sum of divisors
- 63,006
- φ(n) — Euler's totient
- 21,000
- Sum of prime factors
- 21,003
Primality
Prime factorization: 2 × 21001
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand two
- Ordinal
- 42002nd
- Binary
- 1010010000010010
- Octal
- 122022
- Hexadecimal
- 0xA412
- Base64
- pBI=
- One's complement
- 23,533 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓏺𓏺
- Greek (Milesian)
- ͵μββʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋠·𝋢
- Chinese
- 四萬二千零二
- Chinese (financial)
- 肆萬貳仟零貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,002 = 3
- e — Euler's number (e)
- Digit 42,002 = 6
- φ — Golden ratio (φ)
- Digit 42,002 = 8
- √2 — Pythagoras's (√2)
- Digit 42,002 = 9
- ln 2 — Natural log of 2
- Digit 42,002 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,002 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42002, here are decompositions:
- 3 + 41999 = 42002
- 19 + 41983 = 42002
- 43 + 41959 = 42002
- 61 + 41941 = 42002
- 109 + 41893 = 42002
- 139 + 41863 = 42002
- 151 + 41851 = 42002
- 193 + 41809 = 42002
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 90 92 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.18.
- Address
- 0.0.164.18
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.18
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42002 first appears in π at position 119,842 of the decimal expansion (the 119,842ordinal-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.