42,478
42,478 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 25
- Digit product
- 1,792
- Digital root
- 7
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 87,424
- Recamán's sequence
- a(150,667) = 42,478
- Square (n²)
- 1,804,380,484
- Cube (n³)
- 76,646,474,199,352
- Divisor count
- 8
- σ(n) — sum of divisors
- 64,872
- φ(n) — Euler's totient
- 20,856
- Sum of prime factors
- 386
Primality
Prime factorization: 2 × 67 × 317
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand four hundred seventy-eight
- Ordinal
- 42478th
- Binary
- 1010010111101110
- Octal
- 122756
- Hexadecimal
- 0xA5EE
- Base64
- pe4=
- One's complement
- 23,057 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβυοηʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋣·𝋲
- Chinese
- 四萬二千四百七十八
- Chinese (financial)
- 肆萬貳仟肆佰柒拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,478 = 8
- e — Euler's number (e)
- Digit 42,478 = 6
- φ — Golden ratio (φ)
- Digit 42,478 = 6
- √2 — Pythagoras's (√2)
- Digit 42,478 = 6
- ln 2 — Natural log of 2
- Digit 42,478 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,478 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42478, here are decompositions:
- 5 + 42473 = 42478
- 11 + 42467 = 42478
- 17 + 42461 = 42478
- 41 + 42437 = 42478
- 71 + 42407 = 42478
- 179 + 42299 = 42478
- 197 + 42281 = 42478
- 239 + 42239 = 42478
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 97 AE (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.238.
- Address
- 0.0.165.238
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.238
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42478 first appears in π at position 34,469 of the decimal expansion (the 34,469ordinal-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.