813666728034640

Names of 813666728034640

• Cardinal: 813666728034640 can be written as Eight hundred thirteen trillion, six hundred sixty-six billion, seven hundred twenty-eight million, thirty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.1366672803464 × 10¹⁴

Factors of 813666728034640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 18784

Divisors of 813666728034640

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 34 40 61 68 80 85 122 136 170 244 272 305 340 488 499 610 680 976 998 1037 1153 1220 1360 1996 2074 2306 2440 2495 3992 4148 4612 4880 4990 5185 5765 7984 8296 8483 9224 9980 10370 11530 16592 16966 17047 18448 19601 19960 20740 23060 30439 33932 34094 39202 39920 41480 42415 46120 60878 67864 68188 70333 78404 82960 84830 85235 92240 98005 121756 135728 136376 140666 152195 156808 169660 170470 196010 243512 272752 281332 289799 304390 313616 339320 340940 351665 392020 487024 517463 562664 575347 579598 608780 678640 681880 703330 784040 1034926 1039867 1125328 1150694 1159196 1195661 1217560 1363760 1406660 1448995 1568080 2069852 2079734 2301388 2318392 2391322 2435120 2587315 2813320 2876735 2897990 4139704 4159468 4602776 4636784 4782644 5174630 5199335 5626640 5753470 5795980 5978305 8279408 8318936 8506453 9205552 9565288 9780899 10349260 10398670 11506940 11591960 11956610 16637872 17012906 17677739 19130576 19561798 19655191 20698520 20797340 23013880 23183920 23913220 34025812 35096167 35355478 39123596 39310382 41397040 41594680 42532265 46027760 47826440 48904495 68051624 70192334 70710956 78247192 78620764 83189360 85064530 88388695 95652880 97808990 98275955 136103248 140384668 141421912 144609701 156494384 157241528 170129060 175480835 176777390 195617980 196551910 280769336 282843824 289219402 314483056 334138247 340258120 350961670 353554780 391235960 393103820 518893633 561538672 578438804 596634839 668276494 680516240 701923340 707109560 723048505 782471920 786207640 1037787266 1156877608 1193269678 1198966651 1336552988 1403846680 1414219120 1446097010 1572415280 1670691235 2075574532 2313755216 2386539356 2397933302 2594468165 2673105976 2807693360 2892194020 2983174195 3341382470 4151149064 4773078712 4795866604 5188936330 5346211952 5784388040 5966348390 5994833255 6682764940 8302298128 8821191761 9546157424 9591733208 9807940309 10377872660 11568776080 11932696780 11989666510 13365529880 17642383522 19183466416 19615880618 20382433067 20755745320 23865393560 23979333020 26731059760 35284767044 39231761236 40764866134 41511490640 44105958805 47730787120 47958666040 49039701545 70569534088 78463522472 81529732268 88211917610 95917332080 98079403090 101912165335 141139068176 156927044944 163059464536 166734985253 176423835220 196158806180 203824330670 326118929072 333469970506 352847670440 392317612360 407648661340 598284358849 666939941012 705695340880 784635224720 815297322680 833674926265 1196568717698 1333879882024 1630594645360 1667349852530 2393137435396 2667759764048 2991421794245 3334699705060 4786274870792 5982843588490 6669399410120 9572549741584 10170834100433 11965687176980 13338798820240 20341668200866 23931374353960 40683336401732 47862748707920 50854170502165 81366672803464 101708341004330 162733345606928 203416682008660 406833364017320 813666728034640
• Sum of all divisors σ(n): 2041862008896000
• Sum of proper divisors (its aliquot sum) s(n): 1228195280861360
• 813666728034640 is an abundant number, because the sum of its proper divisors (1228195280861360) is greater than itself. Its abundance is 414528552826720

Bases of 813666728034640

• Binary: 10111001000000011010001100010010100100000101010000₂
• Hexadecimal: 0x2E4068C4A4150
• Base-36: 80F5C1MATS

Squares and roots of 813666728034640

• 813666728034640 squared (813666728034640²) is 662053544310596814917039929600
• 813666728034640 cubed (813666728034640³) is 538690941182939860895688544631708611961344000
• The square root of 813666728034640 is 28524844.0492606375
• The cube root of 813666728034640 is 93357.4224342473

Scales and comparisons

• 813,666,728,034,640 seconds is equal to 25,872,085 years, 5 weeks, 6 days, 21 hours, 10 minutes, 40 seconds.
• To count from 1 to 813,666,728,034,640 would take you about sixty-four million, six hundred eighty thousand, two hundred twelve 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 813666728034640 cubic inches would be around 7779.8 feet tall.

Recreational maths with 813666728034640

• 813666728034640 backwards is 046430827666318
• The number of decimal digits it has is: 15
• The sum of 813666728034640's digits is 64
• More coming soon!