72121389903212868

Names of 72121389903212868

• Cardinal: 72121389903212868 can be written as Seventy-two quadrillion, one hundred twenty-one trillion, three hundred eighty-nine billion, nine hundred three million, two hundred twelve thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 7.2121389903212868 × 10¹⁶

Factors of 72121389903212868

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 578

Divisors of 72121389903212868

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 27 36 46 54 69 92 108 131 138 207 262 276 393 414 419 524 529 621 786 828 838 1058 1179 1242 1257 1572 1587 1676 2116 2358 2484 2514 3013 3174 3537 3771 4716 4761 5028 6026 6348 7074 7542 9039 9522 9637 11313 12052 14148 14283 15084 17161 18078 19044 19274 22626 27117 28566 28911 34322 36156 38548 45252 51483 54234 54889 57132 57822 68644 69299 81351 86733 102966 108468 109778 115644 138598 154449 162702 164667 173466 175561 205932 207897 219556 221651 260199 277196 308898 325404 329334 346932 351122 394703 415794 443302 463347 494001 520398 526683 617796 623691 658668 664953 702244 789406 831588 886604 926694 988002 1040796 1053366 1184109 1247382 1262447 1329906 1482003 1578812 1580049 1853388 1871073 1976004 1994859 2106732 2368218 2494764 2524894 2659812 2964006 3160098 3552327 3742146 3787341 3989718 4037903 4736436 4740147 5049788 5928012 5984577 6320196 7104654 7190459 7484292 7574682 7979436 8075806 9078169 9480294 10656981 11362023 11969154 12113709 14209308 14380918 15149364 16151612 18156338 18960588 21313962 21571377 22724046 22998491 23938308 24227418 27234507 28761836 29036281 34086069 36312676 36341127 42627924 43142754 45448092 45996982 48454836 54469014 58072562 64714131 68172138 68995473 72682254 73560059 81703521 86285508 87108843 91993964 92871769 108938028 109023381 116145124 129428262 136344276 137990946 145364508 147120118 163407042 165380557 174217686 185743538 194142393 206986419 218046762 220680177 245110563 258856524 261326529 275981892 278615307 294240236 326814084 330761114 348435372 371487076 388284786 413972838 436093524 441360354 490221126 496141671 522653058 528965293 557230614 620959257 661522228 662040531 776569572 783979587 827945676 835845921 882720708 980442252 992283342 1045306116 1057930586 1114461228 1241918514 1324081062 1488425013 1567959174 1586895879 1671691842 1691881357 1984566684 1986121593 2115861172 2483837028 2507537763 2648162124 2976850026 3012802321 3135918348 3173791758 3343383684 3383762714 3803752811 3972243186 4465275039 4760687637 5015075526 5075644071 5953700052 6025604642 6347583516 6767525428 7607505622 7944486372 8930550078 9038406963 9521375274 9636367729 10030151052 10151288142 11411258433 12051209284 12166201739 14282062911 15215011244 15226932213 17861100156 18076813926 19042750548 19272735458 20302576284 22822516866 24332403478 27115220889 28564125822 28909103187 30453864426 34233775299 36153627852 36498605217 38545470916 38913271211 45645033732 45680796639 48664806956 54230441778 57128251644 57818206374 60907728852 68467550598 69294453383 72997210434 77826542422 81345662667 86727309561 91361593278 102701325897 108460883556 109495815651 115636412748 116739813633 136935101196 138588906766 145994420868 155653084844 162691325334 173454619122 182723186556 205402651794 207883360149 218991631302 221636457767 233479627266 260181928683 277177813532 325382650668 328487446953 346909238244 350219440899 410805303588 415766720298 437983262604 443272915534 466959254532 520363857366 623650080447 656974893906 664909373301 700438881798 831533440596 886545831068 1040727714732 1050658322697 1247300160894 1262364172499 1313949787812 1329818746602 1400877763596 1593772427809 1870950241341 1994728119903 2101316645394 2494600321788 2524728344998 2659637493204 3187544855618 3741900482682 3787092517497 3989456239806 4202633290788 4781317283427 5049456689996 5097638528641 5984184359709 6375089711236 7483800965364 7574185034994 7978912479612 9562634566854 10195277057282 11361277552491 11968368719418 14343951850281 15148370069988 15292915585923 19125269133708 20390554114564 22722555104982 23936737438836 28687903700562 29034375967477 30585831171846 34083832657473 43031855550843 45445110209964 45878746757769 57375807401124 58068751934954 61171662343692 68167665314946 86063711101686 87103127902431 91757493515538 116137503869908 136335330629892 137636240273307 172127422203372 174206255804862 183514987031076 261309383707293 275272480546614 348412511609724 522618767414586 550544961093228 667790647251971 783928151121879 1045237534829172 1335581294503942 1567856302243758 2003371941755913 2671162589007884 3135712604487516 4006743883511826 6010115825267739 8013487767023652 12020231650535478 18030347475803217 24040463301070956 36060694951606434 72121389903212868
• Sum of all divisors σ(n): 197439168882244800
• Sum of proper divisors (its aliquot sum) s(n): 125317778979031932
• 72121389903212868 is an abundant number, because the sum of its proper divisors (125317778979031932) is greater than itself. Its abundance is 53196389075819064

Bases of 72121389903212868

• Binary: 100000000001110100000010110100001111000110111000101000100₂
• Hexadecimal: 0x1003A05A1E37144
• Base-36: JQ4WD4L9MX0

Squares and roots of 72121389903212868

• 72121389903212868 squared (72121389903212868²) is 5201494881571255021460788920785424
• 72121389903212868 cubed (72121389903212868³) is 375139040433366524492270500295856460519163623636032
• The square root of 72121389903212868 is 268554258.7694577373
• The cube root of 72121389903212868 is 416250.4307247427

Scales and comparisons

• 72,121,389,903,212,868 seconds is equal to 2,293,237,112 years, 42 weeks, 2 days, 23 hours, 7 minutes, 48 seconds.
• To count from 1 to 72,121,389,903,212,868 would take you about six billion, eight hundred seventy-nine million, seven hundred eleven thousand, three hundred thirty-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 72121389903212868 cubic inches would be around 34687.5 feet tall.

Recreational maths with 72121389903212868

• 72121389903212868 backwards is 86821230998312127
• The number of decimal digits it has is: 17
• The sum of 72121389903212868's digits is 72
• More coming soon!