472,990
472,990 is a composite number, even.
472,990 (four hundred seventy-two thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 5 × 7 × 29 × 233. Its proper divisors sum to 537,890, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7379E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 99,274
- Square (n²)
- 223,719,540,100
- Cube (n³)
- 105,817,105,271,899,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 1,010,880
- φ(n) — Euler's totient
- 155,904
- Sum of prime factors
- 276
Primality
Prime factorization: 2 × 5 × 7 × 29 × 233
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√472,990 = [687; (1, 2, 1, 7, 1, 3, 1, 5, 3, 2, 3, 1, 1, 26, 2, 2, 5, 1, 1, 4, 4, 1, 1, 1, …)]
Representations
- In words
- four hundred seventy-two thousand nine hundred ninety
- Ordinal
- 472990th
- Binary
- 1110011011110011110
- Octal
- 1633636
- Hexadecimal
- 0x7379E
- Base64
- Bzee
- One's complement
- 4,294,494,305 (32-bit)
- Scientific notation
- 4.7299 × 10⁵
- As a duration
- 472,990 s = 5 days, 11 hours, 23 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υοβϡϟʹ
- Chinese
- 四十七萬二千九百九十
- Chinese (financial)
- 肆拾柒萬貳仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472990, here are decompositions:
- 53 + 472937 = 472990
- 83 + 472907 = 472990
- 107 + 472883 = 472990
- 131 + 472859 = 472990
- 173 + 472817 = 472990
- 191 + 472799 = 472990
- 197 + 472793 = 472990
- 227 + 472763 = 472990
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.55.158.
- Address
- 0.7.55.158
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.55.158
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 472,990 and was likely granted around 1891.
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°.