42,149
42,149 is a composite number, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 20
- Digit product
- 288
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 94,124
- Recamán's sequence
- a(151,325) = 42,149
- Square (n²)
- 1,776,538,201
- Cube (n³)
- 74,879,308,633,949
- Divisor count
- 4
- σ(n) — sum of divisors
- 42,636
- φ(n) — Euler's totient
- 41,664
- Sum of prime factors
- 486
Primality
Prime factorization: 113 × 373
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand one hundred forty-nine
- Ordinal
- 42149th
- Binary
- 1010010010100101
- Octal
- 122245
- Hexadecimal
- 0xA4A5
- Base64
- pKU=
- One's complement
- 23,386 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβρμθʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋧·𝋩
- Chinese
- 四萬二千一百四十九
- Chinese (financial)
- 肆萬貳仟壹佰肆拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,149 = 2
- e — Euler's number (e)
- Digit 42,149 = 7
- φ — Golden ratio (φ)
- Digit 42,149 = 5
- √2 — Pythagoras's (√2)
- Digit 42,149 = 6
- ln 2 — Natural log of 2
- Digit 42,149 = 1
- γ — Euler-Mascheroni (γ)
- Digit 42,149 = 1
Also seen as
UTF-8 encoding: EA 92 A5 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.165.
- Address
- 0.0.164.165
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.165
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 42149 first appears in π at position 56,545 of the decimal expansion (the 56,545ordinal-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.