21621601264640

Names of 21621601264640

• Cardinal: 21621601264640 can be written as Twenty-one trillion, six hundred twenty-one billion, six hundred one million, two hundred sixty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.162160126464 × 10¹³

Factors of 21621601264640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 185659

Divisors of 21621601264640

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 103 104 128 130 136 160 170 206 208 221 256 260 272 320 340 412 416 442 512 515 520 544 640 680 824 832 884 1024 1030 1040 1088 1105 1280 1339 1360 1648 1664 1751 1768 2060 2080 2176 2210 2560 2678 2720 3296 3328 3502 3536 4120 4160 4352 4420 5120 5356 5440 6592 6656 6695 7004 7072 8240 8320 8704 8755 8840 10712 10880 13184 13312 13390 14008 14144 16480 16640 17408 17510 17680 21424 21760 22763 26368 26780 28016 28288 32960 33280 35020 35360 42848 43520 45526 52736 53560 56032 56576 65920 66560 70040 70720 85696 87040 91052 105472 107120 112064 113152 113815 131840 140080 141440 171392 182104 185519 214240 224128 226304 227630 263680 280160 282880 342784 364208 371038 428480 448256 455260 527360 560320 565760 685568 728416 742076 856960 896512 910520 927595 1120640 1131520 1371136 1456832 1484152 1713920 1793024 1821040 1855190 2241280 2411747 2913664 2968304 3153823 3427840 3642080 3710380 4482560 4823494 5827328 5936608 6307646 6855680 7284160 7420760 8965120 9646988 11654656 11873216 12058735 12615292 14568320 14841520 15769115 19108457 19293976 23309312 23746432 24117470 25230584 29136640 29683040 31538230 38216914 38587952 40999699 47492864 48234940 50461168 58273280 59366080 63076460 76433828 77175904 81999398 94985728 95542285 96469880 100922336 116546560 118732160 126152920 152867656 154351808 163998796 189971456 191084570 192939760 201844672 204998495 237464320 248409941 252305840 305735312 308703616 324843769 327997592 382169140 385879520 403689344 409996990 474928640 496819882 504611680 611470624 617407232 649687538 655995184 764338280 771759040 807378688 819993980 949857280 993639764 1009223360 1222941248 1234814464 1242049705 1299375076 1311990368 1528676560 1543518080 1614757376 1624218845 1639987960 1987279528 2018446720 2445882496 2469628928 2484099410 2598750152 2623980736 3057353120 3087036160 3229514752 3248437690 3279975920 3974559056 4036893440 4222968997 4891764992 4968198820 5197500304 5247961472 6114706240 6174072320 6496875380 6559951840 7949118112 8073786880 8445937994 9783529984 9936397640 10395000608 10495922944 12229412480 12348144640 12993750760 13119903680 15898236224 16147573760 16891875988 19567059968 19872795280 20790001216 20991845888 21114844985 24458824960 25987501520 26239807360 31796472448 33783751976 39745590560 41580002432 41983691776 42229689970 48917649920 51975003040 52479614720 63592944896 67567503952 79491181120 83160004864 84459379940 97835299840 103950006080 104959229440 127185889792 135135007904 158982362240 166320009728 168918759880 207900012160 209918458880 254371779584 270270015808 317964724480 332640019456 337837519760 415800024320 540540031616 635929448960 675675039520 831600048640 1081080063232 1271858897920 1351350079040 1663200097280 2162160126464 2702700158080 4324320252928 5405400316160 10810800632320 21621601264640
• Sum of all divisors σ(n): 59716412421120
• Sum of proper divisors (its aliquot sum) s(n): 38094811156480
• 21621601264640 is an abundant number, because the sum of its proper divisors (38094811156480) is greater than itself. Its abundance is 16473209891840

Bases of 21621601264640

• Binary: 100111010101000101011110111001110010000000000₂
• Hexadecimal: 0x13AA2BDCE400
• Base-36: 7NWTR514W

Squares and roots of 21621601264640

• 21621601264640 squared (21621601264640²) is 467493641247082047314329600
• 21621601264640 cubed (21621601264640³) is 10107961104799067660921349194953785344000
• The square root of 21621601264640 is 4649903.3607850389
• The cube root of 21621601264640 is 27858.8136298201

Scales and comparisons

• 21,621,601,264,640 seconds is equal to 687,500 years, 2 weeks, 15 hours, 17 minutes, 20 seconds.
• To count from 1 to 21,621,601,264,640 would take you about one million, seven hundred eighteen thousand, seven hundred fifty 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 21621601264640 cubic inches would be around 2321.6 feet tall.

Recreational maths with 21621601264640

• 21621601264640 backwards is 04646210612612
• The number of decimal digits it has is: 14
• The sum of 21621601264640's digits is 41
• More coming soon!