121666215840

Names of 121666215840

• Cardinal: 121666215840 can be written as One hundred twenty-one billion, six hundred sixty-six million, two hundred fifteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.2166621584 × 10¹¹

Factors of 121666215840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 14724

Divisors of 121666215840

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 31 32 39 40 43 48 52 60 62 65 78 80 86 93 96 104 120 124 129 130 155 156 160 172 186 195 208 215 240 248 258 260 310 312 344 372 390 403 416 430 465 480 496 516 520 559 620 624 645 688 744 780 806 860 930 992 1032 1040 1118 1209 1240 1248 1290 1333 1376 1488 1560 1612 1677 1720 1860 2015 2064 2080 2236 2418 2480 2580 2666 2795 2976 3120 3224 3354 3440 3720 3999 4030 4128 4472 4836 4960 5160 5332 5590 6045 6240 6448 6665 6708 6880 7440 7998 8060 8385 8944 9672 10320 10664 11180 12090 12896 13330 13416 14627 14880 15996 16120 16770 17329 17888 19344 19995 20640 21328 22360 24180 26660 26832 29254 31992 32240 33540 34658 38688 39990 42656 43881 44720 48360 51987 53320 53664 58508 63984 64480 67080 69316 73135 79980 86645 87762 89440 96720 103974 106640 117016 127968 134160 138632 146270 159960 173290 175524 190151 193440 207948 213280 219405 234032 259935 268320 277264 292540 319920 346580 351048 380302 415896 438810 453437 468064 519870 554528 570453 585080 628961 639840 693160 702096 760604 831792 877620 906874 950755 1039740 1140906 1170160 1257922 1360311 1386320 1404192 1521208 1663584 1755240 1813748 1886883 1901510 2079480 2267185 2281812 2340320 2515844 2720622 2772640 2852265 3042416 3144805 3510480 3627496 3773766 3803020 4158960 4534370 4563624 5031688 5441244 5704530 5894681 6084832 6289610 6801555 7020960 7254992 7547532 7606040 8176493 8317920 9068740 9127248 9434415 10063376 10882488 11409060 11789362 12579220 13603110 14509984 15095064 15212080 16352986 17684043 18137480 18254496 18868830 19497791 20126752 21764976 22818120 23578724 24529479 25158440 27206220 29473405 30190128 30424160 32705972 35368086 36274960 37737660 38995582 40882465 43529952 45636240 47157448 49058958 50316880 54412440 58493373 58946810 60380256 65411944 70736172 72549920 75475320 77991164 81764930 88420215 91272480 94314896 97488955 98117916 100633760 108824880 116986746 117893620 122647395 130823888 141472344 150950640 155982328 163529860 176840430 188629792 194977910 196235832 217649760 233973492 235787240 245294790 253471283 261647776 282944688 292466865 301901280 311964656 327059720 353680860 389955820 392471664 467946984 471574480 490589580 506942566 565889376 584933730 623929312 654119440 707361720 760413849 779911640 784943328 935893968 943148960 981179160 1013885132 1169867460 1267356415 1308238880 1414723440 1520827698 1559823280 1871787936 1962358320 2027770264 2339734920 2534712830 2829446880 3041655396 3119646560 3802069245 3924716640 4055540528 4679469840 5069425660 6083310792 7604138490 8111081056 9358939680 10138851320 12166621584 15208276980 20277702640 24333243168 30416553960 40555405280 60833107920 121666215840
• Sum of all divisors σ(n): 435980869632
• Sum of proper divisors (its aliquot sum) s(n): 314314653792
• 121666215840 is an abundant number, because the sum of its proper divisors (314314653792) is greater than itself. Its abundance is 192648437952

Bases of 121666215840

• Binary: 1110001010011110111110001111110100000₂
• Hexadecimal: 0x1C53DF1FA0
• Base-36: 1JW4X8YO

Squares and roots of 121666215840

• 121666215840 squared (121666215840²) is 14802668076825466905600
• 121666215840 cubed (121666215840³) is 1800984609242924958545506504704000
• The square root of 121666215840 is 348806.8460337325
• The cube root of 121666215840 is 4955.1484146089

Scales and comparisons

• 121,666,215,840 seconds is equal to 3,868 years, 31 weeks, 4 days, 19 hours, 4 minutes.
• To count from 1 to 121,666,215,840 would take you about seven thousand, seven hundred thirty-seven 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 121666215840 cubic inches would be around 412.9 feet tall.

Recreational maths with 121666215840

• 121666215840 backwards is 048512666121
• The number of decimal digits it has is: 12
• The sum of 121666215840's digits is 42
• More coming soon!