121539640768

Names of 121539640768

• Cardinal: 121539640768 can be written as One hundred twenty-one billion, five hundred thirty-nine million, six hundred forty thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.21539640768 × 10¹¹

Factors of 121539640768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 203

Divisors of 121539640768

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 49 52 56 64 91 98 104 112 169 181 182 196 208 224 338 343 362 364 392 416 448 637 676 686 724 728 784 832 1183 1267 1274 1352 1372 1448 1456 1568 2353 2366 2534 2548 2704 2744 2896 2912 3136 4459 4706 4732 5068 5096 5408 5488 5792 5824 8281 8869 8918 9412 9464 10136 10192 10816 10976 11584 16471 16562 17738 17836 18824 18928 20272 20384 21952 30589 32761 32942 33124 35476 35672 37648 37856 40544 40768 57967 61178 62083 65522 65884 66248 70952 71344 75296 75712 81088 115297 115934 122356 124166 131044 131768 132496 141904 142688 150592 214123 229327 230594 231868 244712 248332 262088 263536 264992 283808 285376 425893 428246 458654 461188 463736 489424 496664 524176 527072 529984 567616 807079 851786 856492 917308 922376 927472 978848 993328 1048352 1054144 1498861 1605289 1614158 1703572 1712984 1834616 1844752 1854944 1957696 1986656 2096704 2981251 2997722 3210578 3228316 3407144 3425968 3669232 3689504 3709888 3973312 5536609 5962502 5995444 6421156 6456632 6814288 6851936 7338464 7379008 10492027 11073218 11237023 11925004 11990888 12842312 12913264 13628576 13703872 14676928 20868757 20984054 22146436 22474046 23850008 23981776 25684624 25826528 27257152 38756263 41737514 41968108 44292872 44948092 47700016 47963552 51369248 51653056 77512526 83475028 83936216 88585744 89896184 95400032 95927104 102738496 146081299 155025052 166950056 167872432 177171488 179792368 190800064 271293841 292162598 310050104 333900112 335744864 354342976 359584736 542587682 584325196 620100208 667800224 671489728 719169472 1085175364 1168650392 1240200416 1335600448 1899056887 2170350728 2337300784 2480400832 3798113774 4340701456 4674601568 7596227548 8681402912 9349203136 15192455096 17362805824 30384910192 60769820384 121539640768
• Sum of all divisors σ(n): 306251305200
• Sum of proper divisors (its aliquot sum) s(n): 184711664432
• 121539640768 is an abundant number, because the sum of its proper divisors (184711664432) is greater than itself. Its abundance is 63172023664

Bases of 121539640768

• Binary: 1110001001100010100111011110111000000₂
• Hexadecimal: 0x1C4C53BDC0
• Base-36: 1JU1KB0G

Squares and roots of 121539640768

• 121539640768 squared (121539640768²) is 14771884278014487629824
• 121539640768 cubed (121539640768³) is 1795369508616347866828388723064832
• The square root of 121539640768 is 348625.3587563589
• The cube root of 121539640768 is 4953.4294605835

Scales and comparisons

• 121,539,640,768 seconds is equal to 3,864 years, 30 weeks, 2 days, 19 hours, 19 minutes, 28 seconds.
• To count from 1 to 121,539,640,768 would take you about seven thousand, seven hundred twenty-nine 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 121539640768 cubic inches would be around 412.8 feet tall.

Recreational maths with 121539640768

• 121539640768 backwards is 867046935121
• 121539640768 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121539640768's digits is 52
• More coming soon!