142,591
142,591 is a prime, odd.
142,591 (one hundred forty-two thousand five hundred ninety-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x22CFF.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 360
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 195,241
- Recamán's sequence
- a(223,234) = 142,591
- Square (n²)
- 20,332,193,281
- Cube (n³)
- 2,899,187,772,131,071
- Divisor count
- 2
- σ(n) — sum of divisors
- 142,592
- φ(n) — Euler's totient
- 142,590
Primality
142,591 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,591 = [377; (1, 1, 1, 1, 2, 1, 2, 41, 1, 1, 2, 3, 2, 3, 3, 9, 50, 4, 6, 1, 1, 4, 24, 1, …)]
Representations
- In words
- one hundred forty-two thousand five hundred ninety-one
- Ordinal
- 142591st
- Binary
- 100010110011111111
- Octal
- 426377
- Hexadecimal
- 0x22CFF
- Base64
- Aiz/
- One's complement
- 4,294,824,704 (32-bit)
- Scientific notation
- 1.42591 × 10⁵
- As a duration
- 142,591 s = 1 day, 15 hours, 36 minutes, 31 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβφϟαʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋩·𝋫
- Chinese
- 一十四萬二千五百九十一
- Chinese (financial)
- 壹拾肆萬貳仟伍佰玖拾壹
Also seen as
UTF-8 encoding: F0 A2 B3 BF (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.255.
- Address
- 0.2.44.255
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.255
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 142,591 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.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.