42,961
42,961 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 22
- Digit product
- 432
- Digital root
- 4
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 16,924
- Recamán's sequence
- a(72,670) = 42,961
- Square (n²)
- 1,845,647,521
- Cube (n³)
- 79,290,863,149,681
- Divisor count
- 2
- σ(n) — sum of divisors
- 42,962
- φ(n) — Euler's totient
- 42,960
Primality
42,961 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand nine hundred sixty-one
- Ordinal
- 42961st
- Binary
- 1010011111010001
- Octal
- 123721
- Hexadecimal
- 0xA7D1
- Base64
- p9E=
- One's complement
- 22,574 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵μβϡξαʹ
- Mayan (base 20)
- 𝋥·𝋧·𝋨·𝋡
- Chinese
- 四萬二千九百六十一
- Chinese (financial)
- 肆萬貳仟玖佰陸拾壹
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,961 = 5
- e — Euler's number (e)
- Digit 42,961 = 3
- φ — Golden ratio (φ)
- Digit 42,961 = 7
- √2 — Pythagoras's (√2)
- Digit 42,961 = 4
- ln 2 — Natural log of 2
- Digit 42,961 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,961 = 7
Also seen as
UTF-8 encoding: EA 9F 91 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.209.
- Address
- 0.0.167.209
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.167.209
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 42961 first appears in π at position 101,965 of the decimal expansion (the 101,965ordinal-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.