30491154640

Names of 30491154640

• Cardinal: 30491154640 can be written as Thirty billion, four hundred ninety-one million, one hundred fifty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.049115464 × 10¹⁰

Factors of 30491154640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 63661

Divisors of 30491154640

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 6691 13382 26764 33455 53528 56963 66910 107056 113926 133820 227852 267640 284815 455704 535280 569630 911408 1139260 2278520 4557040 381139433 762278866 1524557732 1905697165 3049115464 3811394330 6098230928 7622788660 15245577320 30491154640
• Sum of all divisors σ(n): 70903774368
• Sum of proper divisors (its aliquot sum) s(n): 40412619728
• 30491154640 is an abundant number, because the sum of its proper divisors (40412619728) is greater than itself. Its abundance is 9921465088

Bases of 30491154640

• Binary: 11100011001011010100001100011010000₂
• Hexadecimal: 0x7196A18D0
• Base-36: E09N9HS

Squares and roots of 30491154640

• 30491154640 squared (30491154640²) is 929710511280393529600
• 30491154640 cubed (30491154640³) is 28347946969883943511089017344000
• The square root of 30491154640 is 174617.1659373729
• The cube root of 30491154640 is 3124.0978179453

Scales and comparisons

• 30,491,154,640 seconds is equal to 969 years, 27 weeks, 1 day, 21 hours, 10 minutes, 40 seconds.
• To count from 1 to 30,491,154,640 would take you about one thousand, nine hundred thirty-nine years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 30491154640 cubic inches would be around 260.3 feet tall.

Recreational maths with 30491154640

• 30491154640 backwards is 04645119403
• The number of decimal digits it has is: 11
• The sum of 30491154640's digits is 37
• More coming soon!