21818035669920

Names of 21818035669920

• Cardinal: 21818035669920 can be written as Twenty-one trillion, eight hundred eighteen billion, thirty-five million, six hundred sixty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.181803566992 × 10¹³

Factors of 21818035669920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 18931396

Divisors of 21818035669920

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 49 56 60 70 80 84 96 98 105 112 120 140 147 160 168 196 210 224 240 245 280 294 336 343 392 420 480 490 560 588 672 686 735 784 840 980 1029 1120 1176 1372 1470 1568 1680 1715 1960 2058 2352 2401 2744 2940 3360 3430 3920 4116 4704 4802 5145 5488 5880 6860 7203 7840 8232 9604 10290 10976 11760 12005 13720 14406 16464 19208 20580 23520 24010 27440 28812 32928 36015 38416 41160 48020 54880 57624 72030 76832 82320 96040 115248 144060 164640 192080 230496 288120 384160 576240 1152480 18931379 37862758 56794137 75725516 94656895 113588274 132519653 151451032 189313790 227176548 265039306 283970685 302902064 378627580 397558959 454353096 530078612 567941370 605804128 662598265 757255160 795117918 908706192 927637571 1060157224 1135882740 1325196530 1514510320 1590235836 1817412384 1855275142 1987794795 2120314448 2271765480 2650393060 2782912713 3029020640 3180471672 3710550284 3975589590 4240628896 4543530960 4638187855 5300786120 5565825426 6360943344 6493462997 7421100568 7951179180 9087061920 9276375710 10601572240 11131650852 12721886688 12986925994 13914563565 14842201136 15902358360 18552751420 19480388991 21203144480 22263301704 25973851988 27829127130 29684402272 31804716720 32467314985 37105502840 38960777982 44526603408 45454240979 51947703976 55658254260 63609433440 64934629970 74211005680 77921555964 89053206816 90908481958 97401944955 103895407952 111316508520 129869259940 136362722937 148422011360 155843111928 181816963916 194803889910 207790815904 222633017040 227271204895 259738519880 272725445874 311686223856 363633927832 389607779820 445266034080 454542409790 519477039760 545450891748 623372447712 681813614685 727267855664 779215559640 909084819580 1038954079520 1090901783496 1363627229370 1454535711328 1558431119280 1818169639160 2181803566992 2727254458740 3116862238560 3636339278320 4363607133984 5454508917480 7272678556640 10909017834960 21818035669920
• Sum of all divisors σ(n): 80176514614560
• Sum of proper divisors (its aliquot sum) s(n): 58358478944640
• 21818035669920 is an abundant number, because the sum of its proper divisors (58358478944640) is greater than itself. Its abundance is 36540443274720

Bases of 21818035669920

• Binary: 100111101011111101000010001000000101110100000₂
• Hexadecimal: 0x13D7E8440BA0
• Base-36: 7QF2F42AO

Squares and roots of 21818035669920

• 21818035669920 squared (21818035669920²) is 476026680493901463192806400
• 21818035669920 cubed (21818035669920³) is 10385967094849553206966330005548863488000
• The square root of 21818035669920 is 4670978.0207061563
• The cube root of 21818035669920 is 27942.9261190013

Scales and comparisons

• 21,818,035,669,920 seconds is equal to 693,746 years, 2 weeks, 2 days, 23 hours, 52 minutes.
• To count from 1 to 21,818,035,669,920 would take you about one million, seven hundred thirty-four thousand, three hundred sixty-five 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 21818035669920 cubic inches would be around 2328.6 feet tall.

Recreational maths with 21818035669920

• 21818035669920 backwards is 02996653081812
• 21818035669920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21818035669920's digits is 60
• More coming soon!