478,000
478,000 is a composite number, even.
478,000 (four hundred seventy-eight thousand) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 5³ × 239. Its proper divisors sum to 682,640, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x74B30.
Interestingness
Properties
Primality
Prime factorization: 2 4 × 5 3 × 239
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√478,000 = [691; (2, 1, 1, 1, 34, 1, 4, 1, 7, 1, 6, 2, 1, 5, 18, 55, 3, 1, 11, 1, 2, 2, 2, 16, …)]
Representations
- In words
- four hundred seventy-eight thousand
- Ordinal
- 478000th
- Binary
- 1110100101100110000
- Octal
- 1645460
- Hexadecimal
- 0x74B30
- Base64
- B0sw
- One's complement
- 4,294,489,295 (32-bit)
- Scientific notation
- 4.78 × 10⁵
- As a duration
- 478,000 s = 5 days, 12 hours, 46 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼
- Greek (Milesian)
- ͵υοη
- Chinese
- 四十七萬八千
- Chinese (financial)
- 肆拾柒萬捌仟
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 478000, here are decompositions:
- 23 + 477977 = 478000
- 53 + 477947 = 478000
- 59 + 477941 = 478000
- 101 + 477899 = 478000
- 137 + 477863 = 478000
- 179 + 477821 = 478000
- 191 + 477809 = 478000
- 233 + 477767 = 478000
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.75.48.
- Address
- 0.7.75.48
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.75.48
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 478,000 and was likely granted around 1892.
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°.