813121976940

Names of 813121976940

• Cardinal: 813121976940 can be written as Eight hundred thirteen billion, one hundred twenty-one million, nine hundred seventy-six thousand, nine hundred forty.

Scientific notation

• Scientific notation: 8.1312197694 × 10¹¹

Factors of 813121976940

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 717

Divisors of 813121976940

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 29 30 35 39 41 42 49 52 58 60 65 70 78 82 84 87 91 98 105 116 123 130 140 145 147 156 164 174 182 195 196 203 205 210 245 246 260 273 287 290 294 348 364 377 390 406 410 420 435 455 490 492 533 546 574 580 588 609 615 617 637 735 754 780 812 820 841 861 870 910 980 1015 1066 1092 1131 1148 1189 1218 1230 1234 1274 1365 1421 1435 1470 1508 1599 1682 1722 1740 1820 1851 1885 1911 2009 2030 2132 2262 2378 2436 2460 2468 2523 2548 2639 2665 2730 2842 2870 2940 3045 3085 3185 3198 3364 3444 3567 3702 3731 3770 3822 4018 4060 4205 4263 4305 4319 4524 4756 5046 5278 5330 5460 5655 5684 5740 5887 5945 6027 6090 6170 6370 6396 7105 7134 7404 7462 7540 7644 7917 7995 8021 8036 8323 8410 8526 8610 8638 9255 9555 10045 10092 10556 10660 10933 11193 11310 11774 11890 12054 12180 12340 12615 12740 12957 13195 14210 14268 14924 15457 15834 15990 16042 16646 16820 17052 17220 17276 17661 17835 17893 18473 18510 18655 19110 20090 21315 21595 21866 22386 22620 23548 23780 24063 24108 24969 25230 25297 25914 26117 26390 28420 29435 30135 30233 30914 31668 31980 32084 32799 33292 34481 35322 35670 35786 36946 37020 37310 38220 39585 40105 40180 41209 41615 42630 43190 43732 44772 46371 48126 49938 50460 50594 51828 52234 52780 53679 54665 55419 55965 56147 58261 58870 60270 60466 61828 64785 65598 68962 70644 71340 71572 73892 74620 75891 76531 77285 78351 79170 80210 82418 83230 85260 86380 88305 89465 90699 92365 92742 96252 99876 101188 103443 104468 107358 108199 109330 110838 111930 112294 116522 117740 120315 120540 120932 123627 124845 125251 126485 129570 130585 131196 137924 151165 151782 153062 154570 156702 158340 160420 163995 164836 166460 168441 172405 174783 176610 177079 178930 181398 184730 185484 206045 206886 214716 216398 218660 221676 223860 224588 229593 231855 232609 233044 240630 241367 247254 249690 250502 252970 259140 261170 268395 277095 280735 291305 302330 303564 306124 309140 313404 324597 327990 328861 336882 344810 349566 353220 354158 357860 362796 369460 375753 379455 382655 391755 393029 412090 413772 432796 448253 453495 459186 463710 465218 481260 482734 494508 499380 501004 505940 517215 518897 522340 531237 535717 536790 540995 554190 561470 582610 604660 618135 626255 649194 655980 657722 673764 689620 697827 699132 708316 724101 733613 751506 757393 758910 765310 783510 786058 824180 842205 873915 876757 885395 896506 906990 918372 927420 930436 965468 986583 1034430 1037794 1062474 1071434 1073580 1081990 1108380 1122940 1147965 1163045 1165220 1179087 1206835 1236270 1239553 1252510 1298388 1315444 1344759 1395654 1448202 1467226 1503012 1514786 1517820 1530620 1556691 1567020 1572116 1607151 1622985 1628263 1644305 1684410 1689569 1747830 1753514 1770790 1793012 1813980 1878765 1965145 1973166 2068860 2075588 2124948 2142868 2163980 2200839 2241265 2272179 2295930 2302027 2326090 2358174 2413670 2472540 2479106 2505020 2594485 2630271 2656185 2678585 2689518 2791308 2896404 2934452 3029572 3113382 3137771 3214302 3245970 3256526 3288610 3368820 3379138 3489135 3495660 3507028 3541580 3620505 3632279 3668065 3718659 3757530 3786965 3930290 3946332 4383785 4401678 4482530 4544358 4591860 4604054 4652180 4716348 4827340 4884789 4932915 4958212 5068707 5135291 5188970 5260542 5312370 5357170 5379036 5895435 6197765 6226764 6275542 6428604 6491940 6513052 6577220 6723795 6745661 6758276 6906081 6978270 7241010 7264558 7336130 7437318 7515060 7573930 7783455 7860580 8035755 8141315 8447845 8767570 8803356 8965060 9088716 9208108 9413313 9536969 9769578 9865830 10137414 10270582 10377940 10521084 10624740 10714340 10896837 11004195 11360895 11397841 11510135 11790870 12395530 12551084 13151355 13447590 13491322 13812162 13956540 14482020 14529116 14672260 14874636 15147860 15405873 15566910 15688855 16071510 16114189 16282630 16895690 17535140 18161395 18593295 18826626 19073938 19539156 19731660 20236983 20274828 20541164 21274777 21793674 21964397 22008390 22721790 22795682 23020270 23581740 24423945 24791060 25343535 25425953 25676455 26302710 26895180 26982644 27624324 28610907 30811746 31133820 31377710 32143020 32228378 32565260 33728305 33791380 34193523 34530405 35947037 36322790 37186590 37653252 38147876 40473966 42549554 43587348 43928794 44016780 45443580 45591364 46040540 47066565 47219627 47684845 48342567 48847890 50687070 50851906 51352910 52605420 54484185 56989205 57221814 61623492 62755420 63824331 64456756 65893191 66758783 67456610 68387046 69060810 71894074 72645580 74373180 76277859 77029365 80570945 80947932 85099108 87857588 94133130 94439254 95369690 96685134 97695780 101184915 101374140 101703812 102705820 106373885 107841111 108968370 109821985 113978410 114443628 127129765 127648662 131786382 133517566 134913220 136774092 138121620 141658881 143054535 143788148 148923439 152555718 154058730 161141890 170967615 179735185 188266260 188878508 190739380 193370268 200276349 202369830 212747770 215682222 217936740 219643970 227956820 236098135 241712835 254259530 255297324 263572764 267035132 276572101 283317762 286109070 297846878 305111436 308117460 319121655 322283780 329465955 330537389 333793915 341935230 359470370 381389295 400552698 404739660 425495540 431364444 439287940 446770317 467311481 472196270 483425670 508519060 539205555 553144202 566635524 572218140 595693756 638243310 658931910 661074778 667587830 683870460 708294405 718940740 744617195 762778590 801105396 829716303 893540634 934622962 944392540 966851340 991612167 1001381745 1042464073 1078411110 1106288404 1276486620 1317863820 1322149556 1335175660 1382860505 1401934443 1416588810 1489234390 1525557180 1652686945 1659432606 1787081268 1869245924 1936004707 1983224334 2002763490 2084928146 2156822220 2233851585 2336557405 2765721010 2803868886 2833177620 2978468780 3127392219 3305373890 3318865212 3872009414 3966448668 4005526980 4148581515 4169856292 4467703170 4673114810 4958060835 5212320365 5531442020 5607737772 5808014121 6254784438 6610747780 7009672215 7744018828 8297163030 8935406340 9346229620 9680023535 9916121670 10424640730 11616028242 12509568876 13552032949 14019344430 15636961095 16594326060 19360047070 19832243340 20849281460 23232056484 27104065898 28038688860 29040070605 31273922190 38720094140 40656098847 54208131796 58080141210 62547844380 67760164745 81312197694 116160282420 135520329490 162624395388 203280494235 271040658980 406560988470 813121976940
• Sum of all divisors σ(n): 3030875475264
• Sum of proper divisors (its aliquot sum) s(n): 2217753498324
• 813121976940 is an abundant number, because the sum of its proper divisors (2217753498324) is greater than itself. Its abundance is 1404631521384

Bases of 813121976940

• Binary: 1011110101010001110110001011101001101100₂
• Hexadecimal: 0xBD51D8BA6C
• Base-36: ADJJTWTO

Squares and roots of 813121976940

• 813121976940 squared (813121976940²) is 661167349382813891763600
• 813121976940 cubed (813121976940³) is 537609702218333320530913615131384000
• The square root of 813121976940 is 901732.7635946249
• The cube root of 813121976940 is 9333.6583471543

Scales and comparisons

• 813,121,976,940 seconds is equal to 25,854 years, 39 weeks, 4 days, 23 hours, 49 minutes.
• To count from 1 to 813,121,976,940 would take you about fifty-one thousand, seven hundred 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 813121976940 cubic inches would be around 777.8 feet tall.

Recreational maths with 813121976940

• 813121976940 backwards is 049679121318
• The number of decimal digits it has is: 12
• The sum of 813121976940's digits is 51
• More coming soon!