142,421
142,421 is a prime, odd.
142,421 (one hundred forty-two thousand four hundred twenty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x22C55.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 64
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 124,241
- Recamán's sequence
- a(40,154) = 142,421
- Square (n²)
- 20,283,741,241
- Cube (n³)
- 2,888,830,711,284,461
- Divisor count
- 2
- σ(n) — sum of divisors
- 142,422
- φ(n) — Euler's totient
- 142,420
Primality
142,421 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,421 = [377; (2, 1, 1, 2, 2, 37, 3, 7, 1, 1, 1, 1, 2, 7, 6, 9, 1, 3, 3, 5, 1, 2, 1, 2, …)]
Representations
- In words
- one hundred forty-two thousand four hundred twenty-one
- Ordinal
- 142421st
- Binary
- 100010110001010101
- Octal
- 426125
- Hexadecimal
- 0x22C55
- Base64
- AixV
- One's complement
- 4,294,824,874 (32-bit)
- Scientific notation
- 1.42421 × 10⁵
- As a duration
- 142,421 s = 1 day, 15 hours, 33 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβυκαʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋡·𝋡
- Chinese
- 一十四萬二千四百二十一
- Chinese (financial)
- 壹拾肆萬貳仟肆佰貳拾壹
Also seen as
UTF-8 encoding: F0 A2 B1 95 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.85.
- Address
- 0.2.44.85
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.85
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 142,421 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.