42,071
42,071 is a prime, odd.
42,071 (forty-two thousand seventy-one) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xA457.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 17,024
- Recamán's sequence
- a(151,481) = 42,071
- Square (n²)
- 1,769,969,041
- Cube (n³)
- 74,464,367,523,911
- Divisor count
- 2
- σ(n) — sum of divisors
- 42,072
- φ(n) — Euler's totient
- 42,070
Primality
42,071 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,071 = [205; (8, 1, 10, 1, 4, 1, 17, 205, 17, 1, 4, 1, 10, 1, 8, 410)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- forty-two thousand seventy-one
- Ordinal
- 42071st
- Binary
- 1010010001010111
- Octal
- 122127
- Hexadecimal
- 0xA457
- Base64
- pFc=
- One's complement
- 23,464 (16-bit)
- Scientific notation
- 4.2071 × 10⁴
- As a duration
- 42,071 s = 11 hours, 41 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵μβοαʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋣·𝋫
- Chinese
- 四萬二千零七十一
- Chinese (financial)
- 肆萬貳仟零柒拾壹
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,071 = 1
- e — Euler's number (e)
- Digit 42,071 = 8
- φ — Golden ratio (φ)
- Digit 42,071 = 3
- √2 — Pythagoras's (√2)
- Digit 42,071 = 6
- ln 2 — Natural log of 2
- Digit 42,071 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,071 = 6
Also seen as
UTF-8 encoding: EA 91 97 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.87.
- Address
- 0.0.164.87
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.87
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42071 first appears in π at position 175,869 of the decimal expansion (the 175,869ordinal-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.