142,138
142,138 is a composite number, even.
142,138 (one hundred forty-two thousand one hundred thirty-eight) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 71,069. Written other ways, in hexadecimal, 0x22B3A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 192
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 831,241
- Recamán's sequence
- a(484,551) = 142,138
- Square (n²)
- 20,203,211,044
- Cube (n³)
- 2,871,644,011,372,072
- Divisor count
- 4
- σ(n) — sum of divisors
- 213,210
- φ(n) — Euler's totient
- 71,068
- Sum of prime factors
- 71,071
Primality
Prime factorization: 2 × 71069
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,138 = [377; (83, 1, 3, 1, 1, 8, 1, 3, 19, 12, 1, 18, 2, 2, 3, 2, 1, 1, 2, 2, 9, 1, 3, 2, …)]
Representations
- In words
- one hundred forty-two thousand one hundred thirty-eight
- Ordinal
- 142138th
- Binary
- 100010101100111010
- Octal
- 425472
- Hexadecimal
- 0x22B3A
- Base64
- Ais6
- One's complement
- 4,294,825,157 (32-bit)
- Scientific notation
- 1.42138 × 10⁵
- As a duration
- 142,138 s = 1 day, 15 hours, 28 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβρληʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋦·𝋲
- Chinese
- 一十四萬二千一百三十八
- Chinese (financial)
- 壹拾肆萬貳仟壹佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142138, here are decompositions:
- 41 + 142097 = 142138
- 71 + 142067 = 142138
- 89 + 142049 = 142138
- 107 + 142031 = 142138
- 131 + 142007 = 142138
- 167 + 141971 = 142138
- 179 + 141959 = 142138
- 197 + 141941 = 142138
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AC BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.58.
- Address
- 0.2.43.58
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.58
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 142,138 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.