142,166
142,166 is a composite number, even.
142,166 (one hundred forty-two thousand one hundred sixty-six) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 31 × 2,293. Written other ways, in hexadecimal, 0x22B56.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 288
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 661,241
- Recamán's sequence
- a(39,644) = 142,166
- Square (n²)
- 20,211,171,556
- Cube (n³)
- 2,873,341,415,430,296
- Divisor count
- 8
- σ(n) — sum of divisors
- 220,224
- φ(n) — Euler's totient
- 68,760
- Sum of prime factors
- 2,326
Primality
Prime factorization: 2 × 31 × 2293
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,166 = [377; (20, 2, 1, 1, 1, 2, 1, 2, 3, 2, 2, 1, 2, 1, 1, 3, 12, 12, 12, 3, 1, 1, 2, 1, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand one hundred sixty-six
- Ordinal
- 142166th
- Binary
- 100010101101010110
- Octal
- 425526
- Hexadecimal
- 0x22B56
- Base64
- AitW
- One's complement
- 4,294,825,129 (32-bit)
- Scientific notation
- 1.42166 × 10⁵
- As a duration
- 142,166 s = 1 day, 15 hours, 29 minutes, 26 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβρξϛʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋨·𝋦
- Chinese
- 一十四萬二千一百六十六
- Chinese (financial)
- 壹拾肆萬貳仟壹佰陸拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142166, here are decompositions:
- 7 + 142159 = 142166
- 43 + 142123 = 142166
- 67 + 142099 = 142166
- 109 + 142057 = 142166
- 127 + 142039 = 142166
- 229 + 141937 = 142166
- 313 + 141853 = 142166
- 337 + 141829 = 142166
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AD 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.86.
- Address
- 0.2.43.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.86
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 142,166 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.