42,389
42,389 is a composite number, odd.
42,389 (forty-two thousand three hundred eighty-nine) is an odd 5-digit number. It is a composite number with 8 divisors, and factors as 19 × 23 × 97. Written other ways, in hexadecimal, 0xA595.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 26
- Digit product
- 1,728
- Digital root
- 8
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 98,324
- Recamán's sequence
- a(150,845) = 42,389
- Square (n²)
- 1,796,827,321
- Cube (n³)
- 76,165,713,309,869
- Divisor count
- 8
- σ(n) — sum of divisors
- 47,040
- φ(n) — Euler's totient
- 38,016
- Sum of prime factors
- 139
Primality
Prime factorization: 19 × 23 × 97
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,389 = [205; (1, 7, 1, 3, 4, 2, 1, 2, 2, 2, 7, 2, 1, 4, 6, 8, 4, 8, 6, 4, 1, 2, 7, 2, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- forty-two thousand three hundred eighty-nine
- Ordinal
- 42389th
- Binary
- 1010010110010101
- Octal
- 122625
- Hexadecimal
- 0xA595
- Base64
- pZU=
- One's complement
- 23,146 (16-bit)
- Scientific notation
- 4.2389 × 10⁴
- As a duration
- 42,389 s = 11 hours, 46 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβτπθʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋳·𝋩
- Chinese
- 四萬二千三百八十九
- Chinese (financial)
- 肆萬貳仟參佰捌拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,389 = 7
- e — Euler's number (e)
- Digit 42,389 = 6
- φ — Golden ratio (φ)
- Digit 42,389 = 6
- √2 — Pythagoras's (√2)
- Digit 42,389 = 3
- ln 2 — Natural log of 2
- Digit 42,389 = 4
- γ — Euler-Mascheroni (γ)
- Digit 42,389 = 5
Also seen as
UTF-8 encoding: EA 96 95 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.149.
- Address
- 0.0.165.149
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.149
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42389 first appears in π at position 14,159 of the decimal expansion (the 14,159ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.