42,122
42,122 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 32
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 22,124
- Recamán's sequence
- a(151,379) = 42,122
- Square (n²)
- 1,774,262,884
- Cube (n³)
- 74,735,501,199,848
- Divisor count
- 4
- σ(n) — sum of divisors
- 63,186
- φ(n) — Euler's totient
- 21,060
- Sum of prime factors
- 21,063
Primality
Prime factorization: 2 × 21061
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand one hundred twenty-two
- Ordinal
- 42122nd
- Binary
- 1010010010001010
- Octal
- 122212
- Hexadecimal
- 0xA48A
- Base64
- pIo=
- One's complement
- 23,413 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵μβρκβʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋦·𝋢
- Chinese
- 四萬二千一百二十二
- Chinese (financial)
- 肆萬貳仟壹佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,122 = 3
- e — Euler's number (e)
- Digit 42,122 = 4
- φ — Golden ratio (φ)
- Digit 42,122 = 9
- √2 — Pythagoras's (√2)
- Digit 42,122 = 8
- ln 2 — Natural log of 2
- Digit 42,122 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,122 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42122, here are decompositions:
- 61 + 42061 = 42122
- 79 + 42043 = 42122
- 103 + 42019 = 42122
- 109 + 42013 = 42122
- 139 + 41983 = 42122
- 163 + 41959 = 42122
- 181 + 41941 = 42122
- 211 + 41911 = 42122
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 92 8A (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.138.
- Address
- 0.0.164.138
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.138
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42122 first appears in π at position 184,062 of the decimal expansion (the 184,062ordinal-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.