180,742
180,742 is a composite number, even.
180,742 (one hundred eighty thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 90,371. Written other ways, in hexadecimal, 0x2C206.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 247,081
- Recamán's sequence
- a(66,616) = 180,742
- Square (n²)
- 32,667,670,564
- Cube (n³)
- 5,904,420,113,078,488
- Divisor count
- 4
- σ(n) — sum of divisors
- 271,116
- φ(n) — Euler's totient
- 90,370
- Sum of prime factors
- 90,373
Primality
Prime factorization: 2 × 90371
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√180,742 = [425; (7, 3, 1, 3, 8, 14, 3, 2, 3, 1, 6, 2, 1, 2, 3, 2, 3, 1, 2, 19, 1, 7, 1, 1, …)]
Representations
- In words
- one hundred eighty thousand seven hundred forty-two
- Ordinal
- 180742nd
- Binary
- 101100001000000110
- Octal
- 541006
- Hexadecimal
- 0x2C206
- Base64
- AsIG
- One's complement
- 4,294,786,553 (32-bit)
- Scientific notation
- 1.80742 × 10⁵
- As a duration
- 180,742 s = 2 days, 2 hours, 12 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒌋 𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρπψμβʹ
- Chinese
- 一十八萬零七百四十二
- Chinese (financial)
- 壹拾捌萬零柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 180742, here are decompositions:
- 11 + 180731 = 180742
- 41 + 180701 = 180742
- 113 + 180629 = 180742
- 173 + 180569 = 180742
- 179 + 180563 = 180742
- 239 + 180503 = 180742
- 251 + 180491 = 180742
- 269 + 180473 = 180742
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 AC 88 86 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.194.6.
- Address
- 0.2.194.6
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.194.6
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 180,742 and was likely granted around 1875.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.