126,842
126,842 is a composite number, even.
126,842 (one hundred twenty-six thousand eight hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 63,421. Written other ways, in hexadecimal, 0x1EF7A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 768
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 248,621
- Recamán's sequence
- a(499,683) = 126,842
- Square (n²)
- 16,088,892,964
- Cube (n³)
- 2,040,747,361,339,688
- Divisor count
- 4
- σ(n) — sum of divisors
- 190,266
- φ(n) — Euler's totient
- 63,420
- Sum of prime factors
- 63,423
Primality
Prime factorization: 2 × 63421
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√126,842 = [356; (6, 1, 2, 1, 1, 4, 2, 2, 5, 1, 1, 1, 2, 4, 4, 27, 6, 3, 1, 2, 1, 31, 1, 1, …)]
Representations
- In words
- one hundred twenty-six thousand eight hundred forty-two
- Ordinal
- 126842nd
- Binary
- 11110111101111010
- Octal
- 367572
- Hexadecimal
- 0x1EF7A
- Base64
- Ae96
- One's complement
- 4,294,840,453 (32-bit)
- Scientific notation
- 1.26842 × 10⁵
- As a duration
- 126,842 s = 1 day, 11 hours, 14 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκϛωμβʹ
- Mayan (base 20)
- 𝋯·𝋱·𝋢·𝋢
- Chinese
- 一十二萬六千八百四十二
- Chinese (financial)
- 壹拾貳萬陸仟捌佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 126842, here are decompositions:
- 3 + 126839 = 126842
- 19 + 126823 = 126842
- 61 + 126781 = 126842
- 103 + 126739 = 126842
- 109 + 126733 = 126842
- 139 + 126703 = 126842
- 151 + 126691 = 126842
- 211 + 126631 = 126842
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.239.122.
- Address
- 0.1.239.122
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.239.122
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 126,842 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.