21620528444944

Names of 21620528444944

• Cardinal: 21620528444944 can be written as Twenty-one trillion, six hundred twenty billion, five hundred twenty-eight million, four hundred forty-four thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 2.1620528444944 × 10¹³

Factors of 21620528444944

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 765

Divisors of 21620528444944

• Number of divisors d(n): 225
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 44 52 88 104 121 143 169 176 208 242 286 338 484 572 676 739 968 1144 1331 1352 1478 1573 1859 1936 2288 2662 2704 2956 3146 3718 5324 5912 6292 7436 8129 9607 10648 11824 12584 14641 14872 16258 17303 19214 20449 21296 25168 29282 29744 32516 34606 38428 40898 58564 65032 69212 76856 81796 89419 105677 117128 124891 130064 138424 153712 163592 178838 190333 211354 224939 234256 249782 276848 327184 357676 380666 422708 449878 499564 546121 715352 761332 845416 899756 983609 999128 1092242 1162447 1373801 1430704 1522664 1690832 1799512 1967218 1998256 2184484 2324894 2474329 2747602 3045328 3599024 3934436 4368968 4649788 4948658 5495204 6007331 7099573 7868872 8737936 9299576 9897316 10819699 10990408 12014662 12786917 14199146 15111811 15737744 18599152 19794632 21639398 21980816 24029324 25573834 28398292 30223622 39589264 43278796 48058648 51147668 56796584 60447244 66080641 78095303 86557592 92294449 96117296 102295336 113593168 120894488 132161282 140656087 156190606 166229921 173115184 184588898 204590672 241788976 264322564 281312174 312381212 332459842 369177796 528645128 562624348 624762424 664919684 726887051 738355592 859048333 1015238939 1057290256 1125248696 1249524848 1329839368 1453774102 1476711184 1718096666 1828529131 2030477878 2250497392 2659678736 2907548204 3436193332 3657058262 4060955756 5815096408 6872386664 7314116524 7995757561 8121911512 9449531663 11167628329 11630192816 13744773328 14628233048 15991515122 16243823024 18899063326 22335256658 29256466096 31983030244 37798126652 44670513316 63966060488 75596253304 89341026632 103944848293 122843911619 127932120976 151192506608 178682053264 207889696586 245687823238 415779393172 491375646476 831558786344 982751292952 1351283027809 1663117572688 1965502585904 2702566055618 5405132111236 10810264222472 21620528444944
• Sum of all divisors σ(n): 49963225205565
• Sum of proper divisors (its aliquot sum) s(n): 28342696760621
• 21620528444944 is an abundant number, because the sum of its proper divisors (28342696760621) is greater than itself. Its abundance is 6722168315677

Bases of 21620528444944

• Binary: 100111010100111101011111010101111011000010000₂
• Hexadecimal: 0x13A9EBEAF610
• Base-36: 7NWC0ES5S

Squares and roots of 21620528444944

• 21620528444944 squared (21620528444944²) is 467447250238632618839163136
• 21620528444944 cubed (21620528444944³) is 10106456570295212527503606035228410384384
• 21620528444944 is a perfect square number. Its square root is 4649788
• The cube root of 21620528444944 is 27858.3528563875

Scales and comparisons

• 21,620,528,444,944 seconds is equal to 687,465 years, 48 weeks, 1 day, 17 hours, 49 minutes, 4 seconds.
• To count from 1 to 21,620,528,444,944 would take you about one million, seven hundred eighteen thousand, six hundred sixty-four 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 21620528444944 cubic inches would be around 2321.5 feet tall.

Recreational maths with 21620528444944

• 21620528444944 backwards is 44944482502612
• The number of decimal digits it has is: 14
• The sum of 21620528444944's digits is 55
• More coming soon!