42,089
42,089 is a prime, odd.
42,089 (forty-two thousand eighty-nine) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xA469.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 98,024
- Recamán's sequence
- a(151,445) = 42,089
- Square (n²)
- 1,771,483,921
- Cube (n³)
- 74,559,986,750,969
- Divisor count
- 2
- σ(n) — sum of divisors
- 42,090
- φ(n) — Euler's totient
- 42,088
Primality
42,089 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,089 = [205; (6, 2, 2, 4, 4, 1, 9, 5, 37, 9, 1, 1, 15, 1, 7, 1, 3, 1, 3, 2, 3, 3, 9, 1, …)]
Representations
- In words
- forty-two thousand eighty-nine
- Ordinal
- 42089th
- Binary
- 1010010001101001
- Octal
- 122151
- Hexadecimal
- 0xA469
- Base64
- pGk=
- One's complement
- 23,446 (16-bit)
- Scientific notation
- 4.2089 × 10⁴
- As a duration
- 42,089 s = 11 hours, 41 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβπθʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋤·𝋩
- Chinese
- 四萬二千零八十九
- Chinese (financial)
- 肆萬貳仟零捌拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,089 = 0
- e — Euler's number (e)
- Digit 42,089 = 7
- φ — Golden ratio (φ)
- Digit 42,089 = 3
- √2 — Pythagoras's (√2)
- Digit 42,089 = 5
- ln 2 — Natural log of 2
- Digit 42,089 = 4
- γ — Euler-Mascheroni (γ)
- Digit 42,089 = 3
Also seen as
UTF-8 encoding: EA 91 A9 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.105.
- Address
- 0.0.164.105
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.105
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42089 first appears in π at position 44,565 of the decimal expansion (the 44,565ordinal-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.
Related reading
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.