42,126
42,126 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 15
- Digit product
- 96
- Digital root
- 6
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 62,124
- Recamán's sequence
- a(151,371) = 42,126
- Square (n²)
- 1,774,599,876
- Cube (n³)
- 74,756,794,376,376
- Divisor count
- 32
- σ(n) — sum of divisors
- 103,680
- φ(n) — Euler's totient
- 11,136
- Sum of prime factors
- 88
Primality
Prime factorization: 2 × 3 × 7 × 17 × 59
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand one hundred twenty-six
- Ordinal
- 42126th
- Binary
- 1010010010001110
- Octal
- 122216
- Hexadecimal
- 0xA48E
- Base64
- pI4=
- One's complement
- 23,409 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβρκϛʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋦·𝋦
- Chinese
- 四萬二千一百二十六
- Chinese (financial)
- 肆萬貳仟壹佰貳拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,126 = 3
- e — Euler's number (e)
- Digit 42,126 = 6
- φ — Golden ratio (φ)
- Digit 42,126 = 0
- √2 — Pythagoras's (√2)
- Digit 42,126 = 7
- ln 2 — Natural log of 2
- Digit 42,126 = 8
- γ — Euler-Mascheroni (γ)
- Digit 42,126 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42126, here are decompositions:
- 37 + 42089 = 42126
- 43 + 42083 = 42126
- 53 + 42073 = 42126
- 83 + 42043 = 42126
- 103 + 42023 = 42126
- 107 + 42019 = 42126
- 109 + 42017 = 42126
- 113 + 42013 = 42126
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.142.
- Address
- 0.0.164.142
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.142
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42126 first appears in π at position 83,366 of the decimal expansion (the 83,366ordinal-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.