121989171980

Names of 121989171980

• Cardinal: 121989171980 can be written as One hundred twenty-one billion, nine hundred eighty-nine million, one hundred seventy-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.2198917198 × 10¹¹

Factors of 121989171980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 134

Divisors of 121989171980

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 10 13 20 26 31 52 62 65 83 124 130 155 166 169 260 310 332 338 403 415 620 676 806 830 845 1079 1612 1660 1690 2015 2158 2197 2573 3380 4030 4316 4394 5146 5239 5395 6889 8060 8788 10292 10478 10790 10985 12865 13778 14027 20956 21580 21970 25730 26195 27556 28054 28561 33449 34445 43940 51460 52390 56108 57122 66898 68107 68890 70135 89557 104780 114244 133796 136214 137780 140270 142805 167245 179114 182351 213559 272428 280540 285610 334490 340535 358228 364702 427118 434837 447785 571220 668980 681070 729404 854236 869674 885391 895570 911755 1067795 1164241 1362140 1739348 1770782 1791140 1823510 2135590 2174185 2328482 2370563 2776267 3541564 3647020 4271180 4348370 4426955 4656964 4741126 5552534 5652881 5821205 8696740 8853910 9482252 11105068 11305762 11642410 11852815 13881335 15135133 17707820 22611524 23284820 23705630 27762670 28264405 30270266 36091471 47411260 55525340 56528810 60540532 72182942 73487453 75675665 113057620 144365884 146974906 151351330 180457355 196756729 293949812 302702660 360914710 367437265 393513458 469189123 721829420 734874530 787026916 938378246 983783645 1469749060 1876756492 1967567290 2345945615 3935134580 4691891230 6099458599 9383782460 12198917198 24397834396 30497292995 60994585990 121989171980
• Sum of all divisors σ(n): 289970140992
• Sum of proper divisors (its aliquot sum) s(n): 167980969012
• 121989171980 is an abundant number, because the sum of its proper divisors (167980969012) is greater than itself. Its abundance is 45991797032

Bases of 121989171980

• Binary: 1110001100111000111110000101100001100₂
• Hexadecimal: 0x1C671F0B0C
• Base-36: 1K1H7BIK

Squares and roots of 121989171980

• 121989171980 squared (121989171980²) is 14881358080366017120400
• 121989171980 cubed (121989171980³) is 1815364550161732723848099966392000
• The square root of 121989171980 is 349269.4833219759
• The cube root of 121989171980 is 4959.5289287161

Scales and comparisons

• 121,989,171,980 seconds is equal to 3,878 years, 45 weeks, 4 days, 17 hours, 6 minutes, 20 seconds.
• To count from 1 to 121,989,171,980 would take you about seven thousand, seven hundred fifty-seven 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 121989171980 cubic inches would be around 413.3 feet tall.

Recreational maths with 121989171980

• 121989171980 backwards is 089171989121
• The number of decimal digits it has is: 12
• The sum of 121989171980's digits is 56
• More coming soon!