13,042
13,042 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 24,031
- Recamán's sequence
- a(48,191) = 13,042
- Square (n²)
- 170,093,764
- Cube (n³)
- 2,218,362,870,088
- Divisor count
- 4
- σ(n) — sum of divisors
- 19,566
- φ(n) — Euler's totient
- 6,520
- Sum of prime factors
- 6,523
Primality
Prime factorization: 2 × 6521
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- thirteen thousand forty-two
- Ordinal
- 13042nd
- Binary
- 11001011110010
- Octal
- 31362
- Hexadecimal
- 0x32F2
- Base64
- MvI=
- One's complement
- 52,493 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ιγμβʹ
- Mayan (base 20)
- 𝋡·𝋬·𝋬·𝋢
- Chinese
- 一萬三千零四十二
- Chinese (financial)
- 壹萬參仟零肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,042 = 2
- e — Euler's number (e)
- Digit 13,042 = 2
- φ — Golden ratio (φ)
- Digit 13,042 = 7
- √2 — Pythagoras's (√2)
- Digit 13,042 = 3
- ln 2 — Natural log of 2
- Digit 13,042 = 8
- γ — Euler-Mascheroni (γ)
- Digit 13,042 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13042, here are decompositions:
- 5 + 13037 = 13042
- 41 + 13001 = 13042
- 59 + 12983 = 13042
- 83 + 12959 = 13042
- 89 + 12953 = 13042
- 101 + 12941 = 13042
- 131 + 12911 = 13042
- 149 + 12893 = 13042
Showing the first eight; more decompositions exist.
UTF-8 encoding: E3 8B B2 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.50.242.
- Address
- 0.0.50.242
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.50.242
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 13042 first appears in π at position 135,459 of the decimal expansion (the 135,459ordinal-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.