21918437706317824

Names of 21918437706317824

• Cardinal: 21918437706317824 can be written as Twenty-one quadrillion, nine hundred eighteen trillion, four hundred thirty-seven billion, seven hundred six million, three hundred seventeen thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1918437706317824 × 10¹⁶

Factors of 21918437706317824

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 165242

Divisors of 21918437706317824

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 392 448 512 784 896 1024 1568 1792 2048 3136 3584 4096 6272 7168 8192 12544 14336 16384 25088 28672 50176 57344 100352 114688 165233 200704 330466 401408 660932 802816 1156631 1321864 2313262 2643728 4626524 5287456 8096417 9253048 10574912 16192834 18506096 21149824 32385668 37012192 42299648 64771336 74024384 84599296 129542672 148048768 169198592 259085344 296097536 338397184 518170688 592195072 676794368 1036341376 1184390144 1353588736 2072682752 2368780288 2707177472 4145365504 4737560576 8290731008 9475121152 16581462016 18950242304 27301944289 33162924032 54603888578 66325848064 109207777156 132651696128 191113610023 218415554312 382227220046 436831108624 764454440092 873662217248 1337795270161 1528908880184 1747324434496 2675590540322 3057817760368 3494648868992 5351181080644 6115635520736 6989297737984 10702362161288 12231271041472 13978595475968 21404724322576 24462542082944 27957190951936 42809448645152 48925084165888 55914381903872 85618897290304 97850168331776 111828763807744 171237794580608 195700336663552 223657527615488 342475589161216 391400673327104 447315055230976 684951178322432 782801346654208 1369902356644864 1565602693308416 2739804713289728 3131205386616832 5479609426579456 10959218853158912 21918437706317824
• Sum of all divisors σ(n): 50992668696188037
• Sum of proper divisors (its aliquot sum) s(n): 29074230989870213
• 21918437706317824 is an abundant number, because the sum of its proper divisors (29074230989870213) is greater than itself. Its abundance is 7155793283552389

Bases of 21918437706317824

• Binary: 1001101110111101011001111110101100001000100000000000000₂
• Hexadecimal: 0x4DDEB3F5844000
• Base-36: 5ZTFR9X1TDS

Squares and roots of 21918437706317824

• 21918437706317824 squared (21918437706317824²) is 480417911485734953527044500094976
• 21918437706317824 cubed (21918437706317824³) is 10530010065899391828809372087491421930763241652224
• 21918437706317824 is a perfect square number. Its square root is 148048768
• The cube root of 21918437706317824 is 279857.2303884859

Scales and comparisons

• 21,918,437,706,317,824 seconds is equal to 696,938,520 years, 45 weeks, 5 days, 21 hours, 37 minutes, 4 seconds.
• To count from 1 to 21,918,437,706,317,824 would take you about two billion, ninety million, eight hundred fifteen thousand, five hundred sixty-two 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 21918437706317824 cubic inches would be around 23321.4 feet tall.

Recreational maths with 21918437706317824

• 21918437706317824 backwards is 42871360773481912
• The number of decimal digits it has is: 17
• The sum of 21918437706317824's digits is 73
• More coming soon!