142,660
142,660 is a composite number, even.
142,660 (one hundred forty-two thousand six hundred sixty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 7 × 1,019. Its proper divisors sum to 200,060, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22D44.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 66,241
- Recamán's sequence
- a(223,096) = 142,660
- Square (n²)
- 20,351,875,600
- Cube (n³)
- 2,903,398,573,096,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 342,720
- φ(n) — Euler's totient
- 48,864
- Sum of prime factors
- 1,035
Primality
Prime factorization: 2 2 × 5 × 7 × 1019
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,660 = [377; (1, 2, 2, 1, 2, 11, 2, 3, 4, 2, 6, 2, 1, 3, 1, 8, 1, 1, 5, 1, 4, 1, 1, 2, …)]
Representations
- In words
- one hundred forty-two thousand six hundred sixty
- Ordinal
- 142660th
- Binary
- 100010110101000100
- Octal
- 426504
- Hexadecimal
- 0x22D44
- Base64
- Ai1E
- One's complement
- 4,294,824,635 (32-bit)
- Scientific notation
- 1.4266 × 10⁵
- As a duration
- 142,660 s = 1 day, 15 hours, 37 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβχξʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋭·𝋠
- Chinese
- 一十四萬二千六百六十
- Chinese (financial)
- 壹拾肆萬貳仟陸佰陸拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142660, here are decompositions:
- 3 + 142657 = 142660
- 41 + 142619 = 142660
- 53 + 142607 = 142660
- 59 + 142601 = 142660
- 71 + 142589 = 142660
- 101 + 142559 = 142660
- 107 + 142553 = 142660
- 113 + 142547 = 142660
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B5 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.68.
- Address
- 0.2.45.68
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.68
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 142,660 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.