42,090
42,090 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 9,024
- Recamán's sequence
- a(151,443) = 42,090
- Square (n²)
- 1,771,568,100
- Cube (n³)
- 74,565,301,329,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 107,136
- φ(n) — Euler's totient
- 10,560
- Sum of prime factors
- 94
Primality
Prime factorization: 2 × 3 × 5 × 23 × 61
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand ninety
- Ordinal
- 42090th
- Binary
- 1010010001101010
- Octal
- 122152
- Hexadecimal
- 0xA46A
- Base64
- pGo=
- One's complement
- 23,445 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵μβϟʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋤·𝋪
- Chinese
- 四萬二千零九十
- Chinese (financial)
- 肆萬貳仟零玖拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,090 = 7
- e — Euler's number (e)
- Digit 42,090 = 0
- φ — Golden ratio (φ)
- Digit 42,090 = 0
- √2 — Pythagoras's (√2)
- Digit 42,090 = 7
- ln 2 — Natural log of 2
- Digit 42,090 = 1
- γ — Euler-Mascheroni (γ)
- Digit 42,090 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42090, here are decompositions:
- 7 + 42083 = 42090
- 17 + 42073 = 42090
- 19 + 42071 = 42090
- 29 + 42061 = 42090
- 47 + 42043 = 42090
- 67 + 42023 = 42090
- 71 + 42019 = 42090
- 73 + 42017 = 42090
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 91 AA (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.106.
- Address
- 0.0.164.106
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.106
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42090 first appears in π at position 56,202 of the decimal expansion (the 56,202ordinal-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.