72121665980

Names of 72121665980

• Cardinal: 72121665980 can be written as Seventy-two billion, one hundred twenty-one million, six hundred sixty-five thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 7.212166598 × 10¹⁰

Factors of 72121665980

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1105

Divisors of 72121665980

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 10 13 14 17 20 26 28 34 35 52 65 68 70 85 91 119 130 140 169 170 182 221 238 260 338 340 364 442 455 476 595 676 845 884 910 1061 1105 1183 1190 1547 1690 1820 2122 2197 2210 2366 2380 2873 3094 3380 4244 4394 4420 4732 5305 5746 5915 6188 7427 7735 8788 10610 10985 11492 11830 13793 14365 14854 15379 15470 18037 20111 21220 21970 23660 27586 28561 28730 29708 30758 30940 36074 37135 37349 40222 43940 55172 57122 57460 61516 68965 72148 74270 74698 76895 80444 90185 96551 100555 114244 126259 137930 142805 148540 149396 153790 179309 180370 186745 193102 199927 201110 234481 252518 261443 275860 285610 307580 358618 360740 373490 386204 399854 402220 468962 482755 485537 505036 522886 571220 631295 717236 746980 799708 896545 937924 965510 971074 999635 1045772 1172405 1255163 1262590 1307215 1641367 1793090 1931020 1942148 1999270 2331017 2344810 2427685 2510326 2525180 2614430 3048253 3282734 3398759 3586180 3998540 4662034 4689620 4855370 5020652 5228860 6096506 6275815 6565468 6797518 8206835 9324068 9710740 11655085 12193012 12551630 13595036 15241265 16317119 16413670 16993795 21337771 23310170 25103260 30303221 30482530 32634238 32827340 33987590 39627289 42675542 46620340 60606442 60965060 65268476 67975180 79254578 81585595 85351084 106688855 121212884 151516105 158509156 163171190 198136445 212122547 213377710 277391023 303032210 326342380 396272890 424245094 426755420 515154757 554782046 606064420 792545780 848490188 1030309514 1060612735 1109564092 1386955115 2060619028 2121225470 2575773785 2773910230 3606083299 4242450940 5151547570 5547820460 7212166598 10303095140 14424333196 18030416495 36060832990 72121665980
• Sum of all divisors σ(n): 198733300416
• Sum of proper divisors (its aliquot sum) s(n): 126611634436
• 72121665980 is an abundant number, because the sum of its proper divisors (126611634436) is greater than itself. Its abundance is 54489968456

Bases of 72121665980

• Binary: 1000011001010110010010100100110111100₂
• Hexadecimal: 0x10CAC949BC
• Base-36: X4RDLMK

Squares and roots of 72121665980

• 72121665980 squared (72121665980²) is 5201534703730689360400
• 72121665980 cubed (72121665980³) is 375143348485843037925908639192000
• The square root of 72121665980 is 268554.7727745683
• The cube root of 72121665980 is 4162.5096185213

Scales and comparisons

• 72,121,665,980 seconds is equal to 2,293 years, 12 weeks, 5 days, 12 hours, 6 minutes, 20 seconds.
• To count from 1 to 72,121,665,980 would take you about four thousand, five hundred eighty-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 72121665980 cubic inches would be around 346.9 feet tall.

Recreational maths with 72121665980

• 72121665980 backwards is 08956612127
• The number of decimal digits it has is: 11
• The sum of 72121665980's digits is 47
• More coming soon!