42,428
42,428 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 20
- Digit product
- 512
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 82,424
- Recamán's sequence
- a(150,767) = 42,428
- Square (n²)
- 1,800,135,184
- Cube (n³)
- 76,376,135,586,752
- Divisor count
- 6
- σ(n) — sum of divisors
- 74,256
- φ(n) — Euler's totient
- 21,212
- Sum of prime factors
- 10,611
Primality
Prime factorization: 2 2 × 10607
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand four hundred twenty-eight
- Ordinal
- 42428th
- Binary
- 1010010110111100
- Octal
- 122674
- Hexadecimal
- 0xA5BC
- Base64
- pbw=
- One's complement
- 23,107 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβυκηʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋡·𝋨
- Chinese
- 四萬二千四百二十八
- Chinese (financial)
- 肆萬貳仟肆佰貳拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,428 = 7
- e — Euler's number (e)
- Digit 42,428 = 5
- φ — Golden ratio (φ)
- Digit 42,428 = 4
- √2 — Pythagoras's (√2)
- Digit 42,428 = 6
- ln 2 — Natural log of 2
- Digit 42,428 = 8
- γ — Euler-Mascheroni (γ)
- Digit 42,428 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42428, here are decompositions:
- 19 + 42409 = 42428
- 31 + 42397 = 42428
- 37 + 42391 = 42428
- 79 + 42349 = 42428
- 97 + 42331 = 42428
- 241 + 42187 = 42428
- 271 + 42157 = 42428
- 367 + 42061 = 42428
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 96 BC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.188.
- Address
- 0.0.165.188
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.188
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42428 first appears in π at position 63,981 of the decimal expansion (the 63,981ordinal-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.