142,031
142,031 is a prime, odd.
142,031 (one hundred forty-two thousand thirty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x22ACF.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 130,241
- Recamán's sequence
- a(484,765) = 142,031
- Square (n²)
- 20,172,804,961
- Cube (n³)
- 2,865,163,661,415,791
- Divisor count
- 2
- σ(n) — sum of divisors
- 142,032
- φ(n) — Euler's totient
- 142,030
Primality
142,031 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,031 = [376; (1, 6, 1, 2, 3, 1, 23, 1, 1, 5, 6, 2, 1, 2, 6, 1, 2, 21, 1, 4, 1, 1, 4, 1, …)]
Representations
- In words
- one hundred forty-two thousand thirty-one
- Ordinal
- 142031st
- Binary
- 100010101011001111
- Octal
- 425317
- Hexadecimal
- 0x22ACF
- Base64
- AirP
- One's complement
- 4,294,825,264 (32-bit)
- Scientific notation
- 1.42031 × 10⁵
- As a duration
- 142,031 s = 1 day, 15 hours, 27 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβλαʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋡·𝋫
- Chinese
- 一十四萬二千零三十一
- Chinese (financial)
- 壹拾肆萬貳仟零參拾壹
Also seen as
UTF-8 encoding: F0 A2 AB 8F (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.42.207.
- Address
- 0.2.42.207
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.42.207
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 142,031 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
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.