491,130
491,130 is a composite number, even.
491,130 (four hundred ninety-one thousand one hundred thirty) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2 × 3³ × 5 × 17 × 107. Its proper divisors sum to 908,550, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77E7A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 31,194
- Square (n²)
- 241,208,676,900
- Cube (n³)
- 118,464,817,485,897,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 1,399,680
- φ(n) — Euler's totient
- 122,112
- Sum of prime factors
- 140
Primality
Prime factorization: 2 × 3 3 × 5 × 17 × 107
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√491,130 = [700; (1, 4, 5, 1, 3, 1, 3, 9, 53, 1, 4, 155, 1, 1, 6, 1, 5, 8, 8, 8, 5, 1, 6, 1, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety-one thousand one hundred thirty
- Ordinal
- 491130th
- Binary
- 1110111111001111010
- Octal
- 1677172
- Hexadecimal
- 0x77E7A
- Base64
- B356
- One's complement
- 4,294,476,165 (32-bit)
- Scientific notation
- 4.9113 × 10⁵
- As a duration
- 491,130 s = 5 days, 16 hours, 25 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓎆𓎆𓎆
- Greek (Milesian)
- ͵υϟαρλʹ
- Chinese
- 四十九萬一千一百三十
- Chinese (financial)
- 肆拾玖萬壹仟壹佰參拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 491130, here are decompositions:
- 47 + 491083 = 491130
- 71 + 491059 = 491130
- 89 + 491041 = 491130
- 127 + 491003 = 491130
- 137 + 490993 = 491130
- 139 + 490991 = 491130
- 163 + 490967 = 491130
- 173 + 490957 = 491130
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.126.122.
- Address
- 0.7.126.122
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.126.122
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 491,130 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°.