21640424338949760

Names of 21640424338949760

• Cardinal: 21640424338949760 can be written as Twenty-one quadrillion, six hundred forty trillion, four hundred twenty-four billion, three hundred thirty-eight million, nine hundred forty-nine thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 2.164042433894976 × 10¹⁶

Factors of 21640424338949760

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 73667021878

Divisors of 21640424338949760

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 32 34 36 40 45 48 51 54 60 64 68 72 80 85 90 96 102 108 120 128 135 136 144 153 160 170 180 192 204 216 240 255 270 272 288 306 320 340 360 384 408 432 459 480 510 540 544 576 612 640 680 720 765 816 864 918 960 1020 1080 1088 1152 1224 1360 1440 1530 1632 1728 1836 1920 2040 2160 2176 2295 2448 2720 2880 3060 3264 3456 3672 4080 4320 4590 4896 5440 5760 6120 6528 7344 8160 8640 9180 9792 10880 12240 14688 16320 17280 18360 19584 24480 29376 32640 36720 48960 58752 73440 97920 146880 293760 73667021851 147334043702 221001065553 294668087404 368335109255 442002131106 589336174808 663003196659 736670218510 884004262212 1105005327765 1178672349616 1252339371467 1326006393318 1473340437020 1768008524424 1989009589977 2210010655530 2357344699232 2504678742934 2652012786636 2946680874040 3315015983295 3536017048848 3757018114401 3978019179954 4420021311060 4714689398464 5009357485868 5304025573272 5893361748080 6261696857335 6630031966590 7072034097696 7514036228802 7956038359908 8840042622120 9429378796928 9945047949885 10018714971736 10608051146544 11271054343203 11786723496160 12523393714670 13260063933180 14144068195392 15028072457604 15912076719816 17680085244240 18785090572005 19890095899770 20037429943472 21216102293088 22542108686406 23573446992320 25046787429340 26520127866360 28288136390784 30056144915208 31824153439632 33813163029609 35360170488480 37570181144010 39780191799540 40074859886944 42432204586176 45084217372812 47146893984640 50093574858680 53040255732720 56355271716015 60112289830416 63648306879264 67626326059218 70720340976960 75140362288020 79560383599080 80149719773888 84864409172352 90168434745624 100187149717360 106080511465440 112710543432030 120224579660832 127296613758528 135252652118436 141440681953920 150280724576040 159120767198160 160299439547776 169065815148045 180336869491248 200374299434720 212161022930880 225421086864060 240449159321664 254593227517056 270505304236872 300561449152080 318241534396320 338131630296090 360673738982496 400748598869440 424322045861760 450842173728120 480898318643328 541010608473744 601122898304160 636483068792640 676263260592180 721347477964992 801497197738880 901684347456240 1082021216947488 1202245796608320 1272966137585280 1352526521184360 1442694955929984 1803368694912480 2164042433894976 2404491593216640 2705053042368720 3606737389824960 4328084867789952 5410106084737440 7213474779649920 10820212169474880 21640424338949760
• Sum of all divisors σ(n): 81151591272163200
• Sum of proper divisors (its aliquot sum) s(n): 59511166933213440
• 21640424338949760 is an abundant number, because the sum of its proper divisors (59511166933213440) is greater than itself. Its abundance is 37870742594263680

Bases of 21640424338949760

• Binary: 1001100111000011101100111101101100000110000011010000000₂
• Hexadecimal: 0x4CE1D9ED830680
• Base-36: 5X2W1P47MO0

Squares and roots of 21640424338949760

• 21640424338949760 squared (21640424338949760²) is 468307965569809157083419804057600
• 21640424338949760 cubed (21640424338949760³) is 10134383096240944294342884969030826986970546176000
• The square root of 21640424338949760 is 147106846.6759782055
• The cube root of 21640424338949760 is 278668.9561558239

Scales and comparisons

• 21,640,424,338,949,760 seconds is equal to 688,098,555 years, 39 weeks, 9 hours, 36 minutes.
• To count from 1 to 21,640,424,338,949,760 would take you about two billion, sixty-four million, two hundred ninety-five thousand, six hundred sixty-seven 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 21640424338949760 cubic inches would be around 23222.4 feet tall.

Recreational maths with 21640424338949760

• 21640424338949760 backwards is 06794983342404612
• 21640424338949760 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21640424338949760's digits is 72
• More coming soon!