19812720891516

Names of 19812720891516

• Cardinal: 19812720891516 can be written as Nineteen trillion, eight hundred twelve billion, seven hundred twenty million, eight hundred ninety-one thousand, five hundred sixteen.

Scientific notation

• Scientific notation: 1.9812720891516 × 10¹³

Factors of 19812720891516

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5141

Divisors of 19812720891516

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 7 12 14 19 21 28 38 42 49 57 76 84 98 114 133 137 147 196 228 266 274 294 361 399 411 532 548 588 722 798 822 931 959 1083 1444 1596 1644 1862 1918 2166 2527 2603 2793 2877 3724 3836 4332 4973 5054 5206 5586 5754 6713 7581 7809 9946 10108 10412 11172 11508 13426 14919 15162 15618 17689 18221 18769 19892 20139 26852 29838 30324 31236 34811 35378 36442 37538 40278 49457 53067 54663 56307 59676 69622 70756 72884 75076 80556 94487 98914 104433 106134 109326 112614 127547 131383 139244 148371 188974 197828 208866 212268 218652 225228 243677 255094 262766 283461 296742 346199 356611 377948 382641 394149 417732 487354 510188 525532 566922 593484 661409 681301 692398 713222 731031 765282 788298 919681 974708 1038597 1069833 1133844 1322818 1362602 1384796 1426444 1462062 1530564 1576596 1795253 1839362 1984227 2043903 2077194 2139666 2423393 2496277 2645636 2725204 2759043 2924124 3590506 3678724 3968454 4087806 4154388 4279332 4629863 4769107 4846786 4992554 5385759 5518086 6775609 7181012 7270179 7488831 7936908 8175612 9259726 9538214 9693572 9985108 10771518 11036172 12566771 12944719 13551218 13889589 14307321 14540358 14977662 17473939 18519452 19076428 20326827 21543036 25133542 25889438 27102436 27779178 28614642 29080716 29955324 33383749 34947878 37700313 38834157 40653654 47429263 50267084 51778876 52421817 55558356 57229284 66767498 69895756 75400626 77668314 81307308 87967397 90613033 93338237 94858526 100151247 104843634 133534996 142287789 150801252 155336628 175934794 181226066 186676474 189717052 200302494 209687268 245949661 263902191 271839099 280014711 284575578 332004841 351869588 362452132 373352948 400604988 491899322 527804382 543678198 560029422 569151156 634291231 653367659 664009682 737848983 983798644 996014523 1055608764 1087356396 1120058844 1268582462 1306735318 1328019364 1475697966 1721647627 1773426503 1902873693 1960102977 1992029046 2537164924 2613470636 2951395932 3443295254 3546853006 3805747386 3920205954 3984058092 4573573613 5164942881 5320279509 6886590508 7093706012 7611494772 7840411908 9147147226 10329885762 10640559018 12051533389 12413985521 13720720839 18294294452 20659771524 21281118036 24103066778 24827971042 27441441678 33695103557 36154600167 37241956563 48206133556 49655942084 54882883356 67390207114 72309200334 74483913126 86897898647 101085310671 134780414228 144618400668 148967826252 173795797294 202170621342 235865724899 260693695941 347591594588 404341242684 471731449798 521387391882 707597174697 943462899596 1042774783764 1415194349394 1651060074293 2830388698788 3302120148586 4953180222879 6604240297172 9906360445758 19812720891516
• Sum of all divisors σ(n): 57185545443768
• Sum of proper divisors (its aliquot sum) s(n): 37372824552252
• 19812720891516 is an abundant number, because the sum of its proper divisors (37372824552252) is greater than itself. Its abundance is 17560103660736

Bases of 19812720891516

• Binary: 100100000010100000010001100001101011001111100₂
• Hexadecimal: 0x12050230D67C
• Base-36: 70TU6GWHO

Squares and roots of 19812720891516

• 19812720891516 squared (19812720891516²) is 392543909125114561840778256
• 19812720891516 cubed (19812720891516³) is 7777362909160515469259657882259587676096
• The square root of 19812720891516 is 4451148.2666291853
• The cube root of 19812720891516 is 27059.1847073643

Scales and comparisons

• 19,812,720,891,516 seconds is equal to 629,983 years, 12 weeks, 3 days, 4 hours, 58 minutes, 36 seconds.
• To count from 1 to 19,812,720,891,516 would take you about one million, five hundred seventy-four thousand, nine hundred fifty-eight 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 19812720891516 cubic inches would be around 2254.9 feet tall.

Recreational maths with 19812720891516

• 19812720891516 backwards is 61519802721891
• The number of decimal digits it has is: 14
• The sum of 19812720891516's digits is 60
• More coming soon!