42,400
42,400 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 424
- Recamán's sequence
- a(150,823) = 42,400
- Square (n²)
- 1,797,760,000
- Cube (n³)
- 76,225,024,000,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 105,462
- φ(n) — Euler's totient
- 16,640
- Sum of prime factors
- 73
Primality
Prime factorization: 2 5 × 5 2 × 53
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand four hundred
- Ordinal
- 42400th
- Binary
- 1010010110100000
- Octal
- 122640
- Hexadecimal
- 0xA5A0
- Base64
- paA=
- One's complement
- 23,135 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵μβυʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋠·𝋠
- Chinese
- 四萬二千四百
- Chinese (financial)
- 肆萬貳仟肆佰
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,400 = 6
- e — Euler's number (e)
- Digit 42,400 = 1
- φ — Golden ratio (φ)
- Digit 42,400 = 8
- √2 — Pythagoras's (√2)
- Digit 42,400 = 1
- ln 2 — Natural log of 2
- Digit 42,400 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,400 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42400, here are decompositions:
- 3 + 42397 = 42400
- 41 + 42359 = 42400
- 101 + 42299 = 42400
- 107 + 42293 = 42400
- 173 + 42227 = 42400
- 179 + 42221 = 42400
- 191 + 42209 = 42400
- 269 + 42131 = 42400
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 96 A0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.160.
- Address
- 0.0.165.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.160
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42400 first appears in π at position 92,719 of the decimal expansion (the 92,719ordinal-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.