142,442
142,442 is a composite number, even.
142,442 (one hundred forty-two thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 67 × 1,063. Written other ways, in hexadecimal, 0x22C6A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 256
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 244,241
- Recamán's sequence
- a(40,196) = 142,442
- Square (n²)
- 20,289,723,364
- Cube (n³)
- 2,890,108,775,414,888
- Divisor count
- 8
- σ(n) — sum of divisors
- 217,056
- φ(n) — Euler's totient
- 70,092
- Sum of prime factors
- 1,132
Primality
Prime factorization: 2 × 67 × 1063
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,442 = [377; (2, 2, 2, 3, 2, 43, 1, 28, 18, 2, 1, 1, 1, 15, 2, 3, 3, 4, 6, 6, 12, 1, 5, 1, …)]
Representations
- In words
- one hundred forty-two thousand four hundred forty-two
- Ordinal
- 142442nd
- Binary
- 100010110001101010
- Octal
- 426152
- Hexadecimal
- 0x22C6A
- Base64
- Aixq
- One's complement
- 4,294,824,853 (32-bit)
- Scientific notation
- 1.42442 × 10⁵
- As a duration
- 142,442 s = 1 day, 15 hours, 34 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμβυμβʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋢·𝋢
- Chinese
- 一十四萬二千四百四十二
- Chinese (financial)
- 壹拾肆萬貳仟肆佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142442, here are decompositions:
- 61 + 142381 = 142442
- 73 + 142369 = 142442
- 211 + 142231 = 142442
- 283 + 142159 = 142442
- 331 + 142111 = 142442
- 571 + 141871 = 142442
- 613 + 141829 = 142442
- 631 + 141811 = 142442
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B1 AA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.106.
- Address
- 0.2.44.106
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.106
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 142,442 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 142442 first appears in π at position 685,075 of the decimal expansion (the 685,075ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.