121920919781402556

Names of 121920919781402556

• Cardinal: 121920919781402556 can be written as One hundred twenty-one quadrillion, nine hundred twenty trillion, nine hundred nineteen billion, seven hundred eighty-one million, four hundred two thousand, five hundred fifty-six.

Scientific notation

• Scientific notation: 1.21920919781402556 × 10¹⁷

Factors of 121920919781402556

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 89

Divisors of 121920919781402556

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 31 36 53 54 62 93 106 108 124 159 186 212 279 318 372 477 558 636 837 954 961 1116 1431 1643 1674 1908 1922 2809 2862 2883 3286 3348 3844 4929 5618 5724 5766 6572 8427 8649 9858 11236 11532 14787 16854 17298 19716 25281 25947 29574 33708 34596 44361 50562 50933 51894 59148 75843 87079 88722 101124 101866 103788 148877 151686 152799 174158 177444 203732 261237 297754 303372 305598 348316 446631 458397 522474 595508 611196 783711 893262 916794 1044948 1339893 1375191 1567422 1786524 1833588 2351133 2679786 2699449 2750382 3134844 4019679 4615187 4702266 5359572 5398898 5500764 7890481 8039358 8098347 9230374 9404532 10797796 13845561 15780962 16078716 16196694 18460748 23671443 24295041 27691122 31561924 32393388 41536683 47342886 48590082 55382244 71014329 72885123 83073366 94685772 97180164 124610049 142028658 143070797 145770246 166146732 213042987 244604911 249220098 284057316 286141594 291540492 418195493 426085974 429212391 489209822 498440196 572283188 733814733 836390986 852171948 858424782 978419644 1254586479 1287637173 1467629466 1672781972 1716849564 2201444199 2509172958 2575274346 2935258932 3763759437 3862911519 4402888398 5018345916 5150548692 6604332597 7527518874 7582752241 7725823038 8805776796 11291278311 12964060283 13208665194 15055037748 15165504482 15451646076 22164361129 22582556622 22748256723 25928120566 26417330388 30331008964 38892180849 44328722258 45165113244 45496513446 51856241132 66493083387 68244770169 77784361698 88657444516 90993026892 116676542547 132986166774 136489540338 155568723396 199479250161 204734310507 233353085094 265972333548 272979080676 350029627641 398958500322 401885868773 409468621014 466706170188 598437750483 687095194999 700059255282 797917000644 803771737546 818937242028 1174711139837 1196875500966 1205657606319 1374190389998 1400118510564 1607543475092 2061285584997 2349422279674 2393751001932 2411315212638 2748380779996 3524133419511 3616972818957 4122571169994 4698844559348 4822630425276 6183856754991 7048266839022 7233945637914 8245142339988 10572400258533 10850918456871 12367713509982 14096533678044 14467891275828 18551570264973 21144800517066 21299951044969 21701836913742 24735427019964 31717200775599 36416045334947 37103140529946 42289601034132 42599902089938 43403673827484 63434401551198 63899853134907 72832090669894 74206281059892 85199804179876 109248136004841 126868803102396 127799706269814 145664181339788 191699559404721 218496272009682 255599412539628 327744408014523 383399118809442 436992544019364 575098678214163 655488816029046 766798237618884 983233224043569 1128897405383357 1150197356428326 1310977632058092 1966466448087138 2257794810766714 2300394712856652 3386692216150071 3932932896174276 4515589621533428 6773384432300142 10160076648450213 13546768864600284 20320153296900426 30480229945350639 40640306593800852 60960459890701278 121920919781402556
• Sum of all divisors σ(n): 332897775422587200
• Sum of proper divisors (its aliquot sum) s(n): 210976855641184644
• 121920919781402556 is an abundant number, because the sum of its proper divisors (210976855641184644) is greater than itself. Its abundance is 89055935859782088

Bases of 121920919781402556

• Binary: 110110001001001100110111000111010010000100110011110111100₂
• Hexadecimal: 0x1B1266E3A4267BC
• Base-36: XCHCXBOZEF0

Squares and roots of 121920919781402556

• 121920919781402556 squared (121920919781402556²) is 14864710680343197083527882523333136
• 121920919781402556 cubed (121920919781402556³) is 1812319198431880743642512357649247785272226109895616
• The square root of 121920919781402556 is 349171762.5773919251
• The cube root of 121920919781402556 is 495860.3814088215

Scales and comparisons

• 121,920,919,781,402,556 seconds is equal to 3,876,708,122 years, 45 weeks, 6 days, 4 hours, 42 minutes, 36 seconds.
• To count from 1 to 121,920,919,781,402,556 would take you about eleven billion, six hundred thirty million, one hundred twenty-four thousand, three hundred sixty-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 121920919781402556 cubic inches would be around 41321.7 feet tall.

Recreational maths with 121920919781402556

• 121920919781402556 backwards is 655204187919029121
• The number of decimal digits it has is: 18
• The sum of 121920919781402556's digits is 72
• More coming soon!