142,738
142,738 is a composite number, even.
142,738 (one hundred forty-two thousand seven hundred thirty-eight) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 23 × 29 × 107. Written other ways, in hexadecimal, 0x22D92.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 1,344
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 837,241
- Recamán's sequence
- a(222,940) = 142,738
- Square (n²)
- 20,374,136,644
- Cube (n³)
- 2,908,163,516,291,272
- Divisor count
- 16
- σ(n) — sum of divisors
- 233,280
- φ(n) — Euler's totient
- 65,296
- Sum of prime factors
- 161
Primality
Prime factorization: 2 × 23 × 29 × 107
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,738 = [377; (1, 4, 5, 1, 1, 1, 11, 2, 1, 8, 107, 1, 4, 1, 6, 1, 1, 83, 2, 2, 1, 2, 1, 14, …)]
Representations
- In words
- one hundred forty-two thousand seven hundred thirty-eight
- Ordinal
- 142738th
- Binary
- 100010110110010010
- Octal
- 426622
- Hexadecimal
- 0x22D92
- Base64
- Ai2S
- One's complement
- 4,294,824,557 (32-bit)
- Scientific notation
- 1.42738 × 10⁵
- As a duration
- 142,738 s = 1 day, 15 hours, 38 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβψληʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋰·𝋲
- Chinese
- 一十四萬二千七百三十八
- Chinese (financial)
- 壹拾肆萬貳仟柒佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142738, here are decompositions:
- 5 + 142733 = 142738
- 41 + 142697 = 142738
- 131 + 142607 = 142738
- 137 + 142601 = 142738
- 149 + 142589 = 142738
- 179 + 142559 = 142738
- 191 + 142547 = 142738
- 269 + 142469 = 142738
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B6 92 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.146.
- Address
- 0.2.45.146
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.146
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 142,738 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.