31903707990

Names of 31903707990

• Cardinal: 31903707990 can be written as Thirty-one billion, nine hundred three million, seven hundred seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.190370799 × 10¹⁰

Factors of 31903707990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9058

Divisors of 31903707990

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 154 165 210 231 330 385 462 770 1155 1951 2310 3902 5853 7079 9755 11706 13657 14158 19510 21237 21461 27314 29265 35395 40971 42474 42922 49553 58530 64383 68285 70790 77869 81942 99106 106185 107305 128766 136570 148659 150227 155738 204855 212370 214610 233607 247765 297318 300454 321915 389345 409710 450681 467214 495530 545083 643830 743295 751135 778690 901362 1090166 1168035 1486590 1502270 1635249 2253405 2336070 2725415 3270498 4506810 5450830 8176245 13811129 16352490 27622258 41433387 69055645 82866774 96677903 138111290 151922419 193355806 207166935 290033709 303844838 414333870 455767257 483389515 580067418 759612095 911534514 966779030 1063456933 1450168545 1519224190 2126913866 2278836285 2900337090 3190370799 4557672570 5317284665 6380741598 10634569330 15951853995 31903707990
• Sum of all divisors σ(n): 95524945920
• Sum of proper divisors (its aliquot sum) s(n): 63621237930
• 31903707990 is an abundant number, because the sum of its proper divisors (63621237930) is greater than itself. Its abundance is 31717529940

Bases of 31903707990

• Binary: 11101101101100110111111001101010110₂
• Hexadecimal: 0x76D9BF356
• Base-36: ENMN6MU

Squares and roots of 31903707990

• 31903707990 squared (31903707990²) is 1017846583511189840100
• 31903707990 cubed (31903707990³) is 32473080178960149556005192399000
• The square root of 31903707990 is 178616.0910724451
• The cube root of 31903707990 is 3171.6144453161

Scales and comparisons

• 31,903,707,990 seconds is equal to 1,014 years, 22 weeks, 5 days, 21 hours, 6 minutes, 30 seconds.
• To count from 1 to 31,903,707,990 would take you about two thousand and twenty-eight 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 31903707990 cubic inches would be around 264.3 feet tall.

Recreational maths with 31903707990

• 31903707990 backwards is 09970730913
• The number of decimal digits it has is: 11
• The sum of 31903707990's digits is 48
• More coming soon!