9991745316972

Names of 9991745316972

• Cardinal: 9991745316972 can be written as Nine trillion, nine hundred ninety-one billion, seven hundred forty-five million, three hundred sixteen thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 9.991745316972 × 10¹²

Factors of 9991745316972

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 228058

Divisors of 9991745316972

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 35089 70178 105267 140356 192923 210534 315801 385846 421068 578769 631602 771692 1157538 1263204 1438649 1736307 2315076 2877298 3472614 4315947 5754596 6945228 7909843 8631894 12947841 15819686 17263788 23729529 25895682 31639372 47459058 51791364 71188587 94918116 142377174 284754348 6769475147 13538950294 20308425441 27077900588 40616850882 60925276323 81233701764 121850552646 243701105292 277548481027 555096962054 832645443081 1110193924108 1665290886162 2497936329243 3330581772324 4995872658486 9991745316972
• Sum of all divisors σ(n): 25873805477520
• Sum of proper divisors (its aliquot sum) s(n): 15882060160548
• 9991745316972 is an abundant number, because the sum of its proper divisors (15882060160548) is greater than itself. Its abundance is 5890314843576

Bases of 9991745316972

• Binary: 10010001011001100010011011100010100001101100₂
• Hexadecimal: 0x916626E286C
• Base-36: 3JI576KJ0

Squares and roots of 9991745316972

• 9991745316972 squared (9991745316972²) is 99834974479231892751248784
• 9991745316972 cubed (9991745316972³) is 997525638722884398868917790436909562048
• The square root of 9991745316972 is 3160972.2107244159
• The cube root of 9991745316972 is 21538.4172099387

Scales and comparisons

• 9,991,745,316,972 seconds is equal to 317,706 years, 30 weeks, 6 days, 10 hours, 16 minutes, 12 seconds.
• To count from 1 to 9,991,745,316,972 would take you about seven hundred ninety-four thousand, two hundred sixty-six 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 9991745316972 cubic inches would be around 1794.9 feet tall.

Recreational maths with 9991745316972

• 9991745316972 backwards is 2796135471999
• The number of decimal digits it has is: 13
• The sum of 9991745316972's digits is 72
• More coming soon!