42,438
42,438 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 21
- Digit product
- 768
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 83,424
- Recamán's sequence
- a(150,747) = 42,438
- Square (n²)
- 1,800,983,844
- Cube (n³)
- 76,430,152,371,672
- Divisor count
- 16
- σ(n) — sum of divisors
- 92,736
- φ(n) — Euler's totient
- 12,840
- Sum of prime factors
- 659
Primality
Prime factorization: 2 × 3 × 11 × 643
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand four hundred thirty-eight
- Ordinal
- 42438th
- Binary
- 1010010111000110
- Octal
- 122706
- Hexadecimal
- 0xA5C6
- Base64
- pcY=
- One's complement
- 23,097 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβυληʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋡·𝋲
- Chinese
- 四萬二千四百三十八
- Chinese (financial)
- 肆萬貳仟肆佰參拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,438 = 6
- e — Euler's number (e)
- Digit 42,438 = 4
- φ — Golden ratio (φ)
- Digit 42,438 = 0
- √2 — Pythagoras's (√2)
- Digit 42,438 = 0
- ln 2 — Natural log of 2
- Digit 42,438 = 2
- γ — Euler-Mascheroni (γ)
- Digit 42,438 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42438, here are decompositions:
- 5 + 42433 = 42438
- 29 + 42409 = 42438
- 31 + 42407 = 42438
- 41 + 42397 = 42438
- 47 + 42391 = 42438
- 59 + 42379 = 42438
- 79 + 42359 = 42438
- 89 + 42349 = 42438
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 97 86 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.198.
- Address
- 0.0.165.198
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.198
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42438 first appears in π at position 46,635 of the decimal expansion (the 46,635ordinal-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.