42,004
42,004 is a composite number, even.
42,004 (forty-two thousand four) is an even 5-digit number. It is a composite number with 6 divisors, and factors as 2² × 10,501. Written other ways, in hexadecimal, 0xA414.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 40,024
- Recamán's sequence
- a(151,615) = 42,004
- Square (n²)
- 1,764,336,016
- Cube (n³)
- 74,109,170,016,064
- Divisor count
- 6
- σ(n) — sum of divisors
- 73,514
- φ(n) — Euler's totient
- 21,000
- Sum of prime factors
- 10,505
Primality
Prime factorization: 2 2 × 10501
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,004 = [204; (1, 18, 1, 1, 11, 5, 27, 7, 1, 2, 3, 3, 4, 1, 7, 1, 2, 1, 2, 9, 1, 1, 1, 2, …)]
Representations
- In words
- forty-two thousand four
- Ordinal
- 42004th
- Binary
- 1010010000010100
- Octal
- 122024
- Hexadecimal
- 0xA414
- Base64
- pBQ=
- One's complement
- 23,531 (16-bit)
- Scientific notation
- 4.2004 × 10⁴
- As a duration
- 42,004 s = 11 hours, 40 minutes, 4 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβδʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋠·𝋤
- Chinese
- 四萬二千零四
- Chinese (financial)
- 肆萬貳仟零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,004 = 6
- e — Euler's number (e)
- Digit 42,004 = 4
- φ — Golden ratio (φ)
- Digit 42,004 = 1
- √2 — Pythagoras's (√2)
- Digit 42,004 = 4
- ln 2 — Natural log of 2
- Digit 42,004 = 0
- γ — Euler-Mascheroni (γ)
- Digit 42,004 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42004, here are decompositions:
- 5 + 41999 = 42004
- 23 + 41981 = 42004
- 47 + 41957 = 42004
- 101 + 41903 = 42004
- 107 + 41897 = 42004
- 191 + 41813 = 42004
- 227 + 41777 = 42004
- 233 + 41771 = 42004
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 90 94 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.20.
- Address
- 0.0.164.20
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.20
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42004 first appears in π at position 26,391 of the decimal expansion (the 26,391ordinal-suffix:st 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.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.