1991835132665

Names of 1991835132665

• Cardinal: 1991835132665 can be written as One trillion, nine hundred ninety-one billion, eight hundred thirty-five million, one hundred thirty-two thousand, six hundred sixty-five.

Scientific notation

• Scientific notation: 1.991835132665 × 10¹²

Factors of 1991835132665

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9796

Divisors of 1991835132665

• Number of divisors d(n): 96
• Complete list of divisors:
  1 5 7 19 31 35 49 95 133 155 217 245 589 665 931 1085 1519 1723 2945 4123 4655 7595 8011 8615 12061 20615 28861 32737 40055 53413 56077 60305 84427 144305 152209 163685 229159 248341 267065 280385 373891 392539 422135 761045 1014847 1065463 1145795 1241705 1604113 1738387 1869455 1962695 2617237 4718479 5074235 5327315 7103929 7458241 8020565 8691935 12168709 13086185 13802953 23592395 33029353 35519645 37291205 49727503 60843545 69014765 96620671 165146765 231205471 248637515 262256107 427891543 483103355 676344697 1156027355 1311280535 1835792749 2139457715 2995240801 3381723485 8129939317 9178963745 12850549243 14976204005 20966685607 40649696585 56909575219 64252746215 104833428035 284547876095 398367026533 1991835132665
• Sum of all divisors σ(n): 3023321149440
• Sum of proper divisors (its aliquot sum) s(n): 1031486016775
• 1991835132665 is a deficient number, because the sum of its proper divisors (1031486016775) is less than itself. Its deficiency is 960349115890

Bases of 1991835132665

• Binary: 11100111111000010101000000010001011111001₂
• Hexadecimal: 0x1CFC2A022F9
• Base-36: PF1B7KL5

Squares and roots of 1991835132665

• 1991835132665 squared (1991835132665²) is 3967407195718598150002225
• 1991835132665 cubed (1991835132665³) is 7902421038020229566117505402920179625
• The square root of 1991835132665 is 1411323.8936066377
• The cube root of 1991835132665 is 12582.0419675383

Scales and comparisons

• 1,991,835,132,665 seconds is equal to 63,334 years, 10 weeks, 1 day, 8 hours, 51 minutes, 5 seconds.
• To count from 1 to 1,991,835,132,665 would take you about one hundred fifty-eight thousand, three hundred thirty-five 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 1991835132665 cubic inches would be around 1048.5 feet tall.

Recreational maths with 1991835132665

• 1991835132665 backwards is 5662315381991
• The number of decimal digits it has is: 13
• The sum of 1991835132665's digits is 59
• More coming soon!