142,724
142,724 is a composite number, even.
142,724 (one hundred forty-two thousand seven hundred twenty-four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 31 × 1,151. Written other ways, in hexadecimal, 0x22D84.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 448
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 427,241
- Recamán's sequence
- a(222,968) = 142,724
- Square (n²)
- 20,370,140,176
- Cube (n³)
- 2,907,307,886,479,424
- Divisor count
- 12
- σ(n) — sum of divisors
- 258,048
- φ(n) — Euler's totient
- 69,000
- Sum of prime factors
- 1,186
Primality
Prime factorization: 2 2 × 31 × 1151
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,724 = [377; (1, 3, 1, 2, 1, 1, 1, 1, 1, 1, 1, 22, 1, 150, 6, 2, 1, 11, 8, 4, 1, 1, 2, 29, …)]
Representations
- In words
- one hundred forty-two thousand seven hundred twenty-four
- Ordinal
- 142724th
- Binary
- 100010110110000100
- Octal
- 426604
- Hexadecimal
- 0x22D84
- Base64
- Ai2E
- One's complement
- 4,294,824,571 (32-bit)
- Scientific notation
- 1.42724 × 10⁵
- As a duration
- 142,724 s = 1 day, 15 hours, 38 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβψκδʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋰·𝋤
- Chinese
- 一十四萬二千七百二十四
- Chinese (financial)
- 壹拾肆萬貳仟柒佰貳拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142724, here are decompositions:
- 13 + 142711 = 142724
- 67 + 142657 = 142724
- 151 + 142573 = 142724
- 157 + 142567 = 142724
- 181 + 142543 = 142724
- 223 + 142501 = 142724
- 271 + 142453 = 142724
- 367 + 142357 = 142724
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B6 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.132.
- Address
- 0.2.45.132
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.132
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 142,724 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.