42,006
42,006 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 60,024
- Recamán's sequence
- a(151,611) = 42,006
- Square (n²)
- 1,764,504,036
- Cube (n³)
- 74,119,756,536,216
- Divisor count
- 8
- σ(n) — sum of divisors
- 84,024
- φ(n) — Euler's totient
- 14,000
- Sum of prime factors
- 7,006
Primality
Prime factorization: 2 × 3 × 7001
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand six
- Ordinal
- 42006th
- Binary
- 1010010000010110
- Octal
- 122026
- Hexadecimal
- 0xA416
- Base64
- pBY=
- One's complement
- 23,529 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβϛʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋠·𝋦
- Chinese
- 四萬二千零六
- Chinese (financial)
- 肆萬貳仟零陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,006 = 7
- e — Euler's number (e)
- Digit 42,006 = 5
- φ — Golden ratio (φ)
- Digit 42,006 = 9
- √2 — Pythagoras's (√2)
- Digit 42,006 = 4
- ln 2 — Natural log of 2
- Digit 42,006 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,006 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42006, here are decompositions:
- 7 + 41999 = 42006
- 23 + 41983 = 42006
- 37 + 41969 = 42006
- 47 + 41959 = 42006
- 53 + 41953 = 42006
- 59 + 41947 = 42006
- 79 + 41927 = 42006
- 103 + 41903 = 42006
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 90 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.22.
- Address
- 0.0.164.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.22
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42006 first appears in π at position 139,268 of the decimal expansion (the 139,268ordinal-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.