81002737745600

Names of 81002737745600

• Cardinal: 81002737745600 can be written as Eighty-one trillion, two billion, seven hundred thirty-seven million, seven hundred forty-five thousand, six hundred.

Scientific notation

• Scientific notation: 8.10027377456 × 10¹³

Factors of 81002737745600

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2740

Divisors of 81002737745600

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 59 64 80 88 100 110 118 121 160 176 200 220 236 242 275 295 320 352 400 440 472 484 550 590 605 649 704 800 880 944 968 1100 1180 1210 1298 1475 1600 1760 1888 1936 2200 2360 2420 2596 2663 2950 3025 3245 3520 3776 3872 4400 4720 4840 5192 5326 5900 6050 6490 7139 7744 8800 9440 9680 10384 10652 11800 12100 12980 13315 14278 16225 17600 18880 19360 20768 21304 23600 24200 25960 26630 28556 29293 32450 35695 38720 41536 42608 47200 48400 51920 53260 57112 58586 64900 66575 71390 85216 94400 96800 103840 106520 114224 117172 129800 133150 142780 146465 157117 170432 178475 193600 207680 213040 228448 234344 259600 266300 285560 292930 314234 322223 356950 426080 456896 468688 519200 532600 571120 585860 628468 644446 713900 732325 785585 852160 937376 1038400 1065200 1142240 1171720 1256936 1288892 1427800 1464650 1571170 1611115 1728287 1874752 2130400 2284480 2343440 2513872 2577784 2855600 2929300 3142340 3222230 3456574 3927925 4260800 4686880 5027744 5155568 5711200 5858600 6284680 6444460 6913148 7091569 7855850 8055575 8641435 9373760 10055488 10311136 11422400 11717200 12569360 12888920 13826296 14183138 15711700 16111150 17282870 19011157 20622272 23434400 25138720 25777840 27652592 28366276 31423400 32222300 34565740 35457845 38022314 43207175 46868800 50277440 51555680 55305184 56732552 62846800 64444600 69131480 70915690 76044628 78007259 86414350 95055785 103111360 110610368 113465104 125693600 128889200 138262960 141831380 152089256 156014518 172828700 177289225 190111570 226930208 251387200 257778400 276525920 283662760 304178512 312029036 345657400 354578450 380223140 390036295 418402571 453860416 475278925 515556800 553051840 567325520 608357024 624058072 691314800 709156900 760446280 780072590 836805142 858079849 950557850 1134651040 1216714048 1248116144 1382629600 1418313800 1520892560 1560145180 1673610284 1716159698 1901115700 1950181475 2092012855 2269302080 2496232288 2765259200 2836627600 3041785120 3120290360 3347220568 3432319396 3802231400 3900362950 4184025710 4290399245 4602428281 4992464576 5673255200 6083570240 6240580720 6694441136 6864638792 7604462800 7800725900 8368051420 8580798490 9204856562 10460064275 11346510400 12481161440 13388882272 13729277584 15208925600 15601451800 16736102840 17161596980 18409713124 20920128550 21451996225 23012141405 24962322880 26777764544 27458555168 30417851200 31202903600 33472205680 34323193960 36819426248 41840257100 42903992450 46024282810 50626711091 54917110336 62405807200 66944411360 68646387920 73638852496 83680514200 85807984900 92048565620 101253422182 115060707025 124811614400 133888822720 137292775840 147277704992 167361028400 171615969800 184097131240 202506844364 230121414050 253133555455 274585551680 294555409984 334722056800 343231939600 368194262480 405013688728 460242828100 506267110910 669444113600 686463879200 736388524960 810027377456 920485656200 1012534221820 1265667777275 1372927758400 1472777049920 1620054754912 1840971312400 2025068443640 2531335554550 3240109509824 3681942624800 4050136887280 5062671109100 7363885249600 8100273774560 10125342218200 16200547549120 20250684436400 40501368872800 81002737745600
• Sum of all divisors σ(n): 222881362661580
• Sum of proper divisors (its aliquot sum) s(n): 141878624915980
• 81002737745600 is an abundant number, because the sum of its proper divisors (141878624915980) is greater than itself. Its abundance is 60875887170380

Bases of 81002737745600

• Binary: 10010011010101111101011011010001011111011000000₂
• Hexadecimal: 0x49ABEB68BEC0
• Base-36: SPO56MI0W

Squares and roots of 81002737745600

• 81002737745600 squared (81002737745600²) is 6561443522282450970319360000
• 81002737745600 cubed (81002737745600³) is 531494888868011305877969367558434816000000
• The square root of 81002737745600 is 9000152.0956926055
• The cube root of 81002737745600 is 43267.9745743989

Scales and comparisons

• 81,002,737,745,600 seconds is equal to 2,575,636 years, 26 weeks, 20 hours, 53 minutes, 20 seconds.
• To count from 1 to 81,002,737,745,600 would take you about six million, four hundred thirty-nine thousand and ninety-one 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 81002737745600 cubic inches would be around 3605.7 feet tall.

Recreational maths with 81002737745600

• 81002737745600 backwards is 00654773720018
• 81002737745600 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81002737745600's digits is 50
• More coming soon!