30991013670

Names of 30991013670

• Cardinal: 30991013670 can be written as Thirty billion, nine hundred ninety-one million, thirteen thousand, six hundred seventy.

Scientific notation

• Scientific notation: 3.099101367 × 10¹⁰

Factors of 30991013670

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 5161

Divisors of 30991013670

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 30 181 362 543 905 1086 1801 1810 2715 3169 3602 5403 5430 6338 9005 9507 10806 15845 18010 19014 27015 31690 47535 54030 95070 325981 573589 651962 977943 1147178 1629905 1720767 1955886 2867945 3259810 3441534 4889715 5707369 5735890 8603835 9779430 11414738 17122107 17207670 28536845 34244214 57073690 85610535 171221070 1033033789 2066067578 3099101367 5165168945 6198202734 10330337890 15495506835 30991013670
• Sum of all divisors σ(n): 74854503360
• Sum of proper divisors (its aliquot sum) s(n): 43863489690
• 30991013670 is an abundant number, because the sum of its proper divisors (43863489690) is greater than itself. Its abundance is 12872476020

Bases of 30991013670

• Binary: 11100110111001101010101011100100110₂
• Hexadecimal: 0x737355726
• Base-36: E8J8Z6U

Squares and roots of 30991013670

• 30991013670 squared (30991013670²) is 960442928294126868900
• 30991013670 cubed (30991013670³) is 29765099920018115574794197863000
• The square root of 30991013670 is 176042.6473045665
• The cube root of 30991013670 is 3141.0770802261

Scales and comparisons

• 30,991,013,670 seconds is equal to 985 years, 21 weeks, 5 days, 6 hours, 54 minutes, 30 seconds.
• To count from 1 to 30,991,013,670 would take you about one thousand, nine hundred seventy 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 30991013670 cubic inches would be around 261.8 feet tall.

Recreational maths with 30991013670

• 30991013670 backwards is 07631019903
• The number of decimal digits it has is: 11
• The sum of 30991013670's digits is 39
• More coming soon!