129436724820

Names of 129436724820

• Cardinal: 129436724820 can be written as One hundred twenty-nine billion, four hundred thirty-six million, seven hundred twenty-four thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.2943672482 × 10¹¹

Factors of 129436724820

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 450

Divisors of 129436724820

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 20 26 30 31 37 39 52 60 62 65 74 78 93 111 124 130 148 155 156 169 185 186 195 222 260 310 338 359 370 372 390 403 444 465 481 507 555 620 676 718 740 780 806 845 930 961 962 1014 1077 1110 1147 1209 1436 1443 1612 1690 1795 1860 1922 1924 2015 2028 2154 2220 2294 2405 2418 2535 2883 2886 3380 3441 3590 3844 4030 4308 4588 4667 4805 4810 4836 5070 5239 5385 5735 5766 5772 6045 6253 6882 7180 7215 8060 9334 9610 9620 10140 10478 10770 11129 11470 11532 12090 12493 12506 13283 13764 14001 14415 14430 14911 15717 17205 18668 18759 19220 20956 21540 22258 22940 23335 24180 24986 25012 26195 26566 28002 28830 28860 29822 31265 31434 33387 34410 35557 37479 37518 39849 44516 44733 46670 49972 52390 53132 55645 56004 57660 59644 60671 62465 62530 62868 66415 66774 68820 70005 71114 74555 74958 75036 78585 79698 89466 93340 93795 104780 106671 111290 121342 124930 125060 132830 133548 140010 142228 144677 149110 149916 157170 159396 162409 166935 172679 177785 178932 182013 187395 187590 193843 199245 213342 222580 223665 242684 249860 265660 280020 289354 298220 303355 314340 324818 333870 344999 345358 355570 364026 374790 375180 387686 398490 411773 426684 434031 447330 462241 487227 518037 533355 578708 581529 606710 649636 667740 689998 690716 711140 723385 728052 749580 775372 796980 812045 823546 863395 868062 894660 910065 924482 969215 974454 1034997 1036074 1066710 1163058 1213420 1235319 1379996 1386723 1446770 1624090 1647092 1724995 1726790 1736124 1820130 1848964 1880801 1938430 1948908 2058865 2069994 2072148 2133420 2170155 2244827 2311205 2326116 2436135 2470638 2590185 2773446 2893540 2907645 3248180 3449990 3453580 3640260 3761602 3876860 4117730 4139988 4340310 4484987 4489654 4622410 4872270 4941276 5174985 5180370 5353049 5546892 5642403 5815290 6009133 6176595 6734481 6899980 6933615 7523204 8235460 8680620 8969974 8979308 9244820 9404005 9744540 10349970 10360740 10706098 11224135 11284806 11630580 12018266 12353190 12764963 13454961 13468962 13867230 16059147 17939948 18027399 18808010 20699940 21412196 22424935 22448270 22569612 24036532 24706380 25529926 26765245 26909922 26937924 27734460 28212015 30045665 32118294 33672405 36054798 37616020 38294889 44849870 44896540 51059852 53530490 53819844 56424030 58304831 60091330 63824815 64236588 67274805 67344810 69589637 72109596 76589778 80295735 89699740 90136995 107060980 112848060 116609662 120182660 127649630 134549610 134689620 139179274 153179556 160591470 165944519 174914493 180273990 191474445 208768911 233219324 255299260 269099220 278358548 291524155 321182940 331889038 347948185 349828986 360547980 382948890 417537822 497833557 583048310 663778076 695896370 699657972 765897780 829722595 835075644 874572465 995667114 1043844555 1166096620 1391792740 1659445190 1749144930 1991334228 2087689110 2157278747 2489167785 3318890380 3498289860 4175378220 4314557494 4978335570 6471836241 8629114988 9956671140 10786393735 12943672482 21572787470 25887344964 32359181205 43145574940 64718362410 129436724820
• Sum of all divisors σ(n): 417633874560
• Sum of proper divisors (its aliquot sum) s(n): 288197149740
• 129436724820 is an abundant number, because the sum of its proper divisors (288197149740) is greater than itself. Its abundance is 158760424920

Bases of 129436724820

• Binary: 1111000100011000001111010111001010100₂
• Hexadecimal: 0x1E2307AE54
• Base-36: 1NGNA82C

Squares and roots of 129436724820

• 129436724820 squared (129436724820²) is 16753865732128404032400
• 129436724820 cubed (129436724820³) is 2168565508440732065647537164168000
• The square root of 129436724820 is 359773.1574478563
• The cube root of 129436724820 is 5058.4699193991

Scales and comparisons

• 129,436,724,820 seconds is equal to 4,115 years, 35 weeks, 5 days, 5 hours, 47 minutes.
• To count from 1 to 129,436,724,820 would take you about eight thousand, two hundred thirty-one 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 129436724820 cubic inches would be around 421.5 feet tall.

Recreational maths with 129436724820

• 129436724820 backwards is 028427634921
• The number of decimal digits it has is: 12
• The sum of 129436724820's digits is 48
• More coming soon!