142,865
142,865 is a composite number, odd.
142,865 (one hundred forty-two thousand eight hundred sixty-five) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 5 × 28,573. Written other ways, in hexadecimal, 0x22E11.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 1,920
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 568,241
- Recamán's sequence
- a(222,686) = 142,865
- Square (n²)
- 20,410,408,225
- Cube (n³)
- 2,915,932,971,064,625
- Divisor count
- 4
- σ(n) — sum of divisors
- 171,444
- φ(n) — Euler's totient
- 114,288
- Sum of prime factors
- 28,578
Primality
Prime factorization: 5 × 28573
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,865 = [377; (1, 38, 1, 3, 1, 2, 1, 1, 2, 1, 3, 1, 38, 1, 754)]
Period length 15 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand eight hundred sixty-five
- Ordinal
- 142865th
- Binary
- 100010111000010001
- Octal
- 427021
- Hexadecimal
- 0x22E11
- Base64
- Ai4R
- One's complement
- 4,294,824,430 (32-bit)
- Scientific notation
- 1.42865 × 10⁵
- As a duration
- 142,865 s = 1 day, 15 hours, 41 minutes, 5 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβωξεʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋣·𝋥
- Chinese
- 一十四萬二千八百六十五
- Chinese (financial)
- 壹拾肆萬貳仟捌佰陸拾伍
Also seen as
UTF-8 encoding: F0 A2 B8 91 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.17.
- Address
- 0.2.46.17
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.17
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 142,865 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.