42,023
42,023 is a prime, odd.
42,023 (forty-two thousand twenty-three) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xA427.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 32,024
- Recamán's sequence
- a(151,577) = 42,023
- Square (n²)
- 1,765,932,529
- Cube (n³)
- 74,209,782,666,167
- Divisor count
- 2
- σ(n) — sum of divisors
- 42,024
- φ(n) — Euler's totient
- 42,022
Primality
42,023 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,023 = [204; (1, 203, 1, 408)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- forty-two thousand twenty-three
- Ordinal
- 42023rd
- Binary
- 1010010000100111
- Octal
- 122047
- Hexadecimal
- 0xA427
- Base64
- pCc=
- One's complement
- 23,512 (16-bit)
- Scientific notation
- 4.2023 × 10⁴
- As a duration
- 42,023 s = 11 hours, 40 minutes, 23 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβκγʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋡·𝋣
- Chinese
- 四萬二千零二十三
- Chinese (financial)
- 肆萬貳仟零貳拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,023 = 7
- e — Euler's number (e)
- Digit 42,023 = 1
- φ — Golden ratio (φ)
- Digit 42,023 = 7
- √2 — Pythagoras's (√2)
- Digit 42,023 = 0
- ln 2 — Natural log of 2
- Digit 42,023 = 9
- γ — Euler-Mascheroni (γ)
- Digit 42,023 = 9
Also seen as
UTF-8 encoding: EA 90 A7 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.39.
- Address
- 0.0.164.39
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.39
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42023 first appears in π at position 166,957 of the decimal expansion (the 166,957ordinal-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.