142,856
142,856 is a composite number, even.
142,856 (one hundred forty-two thousand eight hundred fifty-six) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 7 × 2,551. Its proper divisors sum to 163,384, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22E08.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 1,920
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 658,241
- Recamán's sequence
- a(222,704) = 142,856
- Square (n²)
- 20,407,836,736
- Cube (n³)
- 2,915,381,924,758,016
- Divisor count
- 16
- σ(n) — sum of divisors
- 306,240
- φ(n) — Euler's totient
- 61,200
- Sum of prime factors
- 2,564
Primality
Prime factorization: 2 3 × 7 × 2551
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,856 = [377; (1, 25, 1, 754)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand eight hundred fifty-six
- Ordinal
- 142856th
- Binary
- 100010111000001000
- Octal
- 427010
- Hexadecimal
- 0x22E08
- Base64
- Ai4I
- One's complement
- 4,294,824,439 (32-bit)
- Scientific notation
- 1.42856 × 10⁵
- As a duration
- 142,856 s = 1 day, 15 hours, 40 minutes, 56 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβωνϛʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋢·𝋰
- Chinese
- 一十四萬二千八百五十六
- Chinese (financial)
- 壹拾肆萬貳仟捌佰伍拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142856, here are decompositions:
- 19 + 142837 = 142856
- 67 + 142789 = 142856
- 97 + 142759 = 142856
- 157 + 142699 = 142856
- 199 + 142657 = 142856
- 283 + 142573 = 142856
- 313 + 142543 = 142856
- 487 + 142369 = 142856
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B8 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.8.
- Address
- 0.2.46.8
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.8
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 142,856 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.