42,398
42,398 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 26
- Digit product
- 1,728
- Digital root
- 8
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 89,324
- Recamán's sequence
- a(150,827) = 42,398
- Square (n²)
- 1,797,590,404
- Cube (n³)
- 76,214,237,948,792
- Divisor count
- 16
- σ(n) — sum of divisors
- 71,280
- φ(n) — Euler's totient
- 18,816
- Sum of prime factors
- 91
Primality
Prime factorization: 2 × 17 × 29 × 43
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand three hundred ninety-eight
- Ordinal
- 42398th
- Binary
- 1010010110011110
- Octal
- 122636
- Hexadecimal
- 0xA59E
- Base64
- pZ4=
- One's complement
- 23,137 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβτϟηʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋳·𝋲
- Chinese
- 四萬二千三百九十八
- Chinese (financial)
- 肆萬貳仟參佰玖拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,398 = 1
- e — Euler's number (e)
- Digit 42,398 = 7
- φ — Golden ratio (φ)
- Digit 42,398 = 3
- √2 — Pythagoras's (√2)
- Digit 42,398 = 3
- ln 2 — Natural log of 2
- Digit 42,398 = 0
- γ — Euler-Mascheroni (γ)
- Digit 42,398 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42398, here are decompositions:
- 7 + 42391 = 42398
- 19 + 42379 = 42398
- 61 + 42337 = 42398
- 67 + 42331 = 42398
- 211 + 42187 = 42398
- 229 + 42169 = 42398
- 241 + 42157 = 42398
- 337 + 42061 = 42398
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 96 9E (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.158.
- Address
- 0.0.165.158
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.158
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 42398 first appears in π at position 55,169 of the decimal expansion (the 55,169ordinal-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.