21138336165744

Names of 21138336165744

• Cardinal: 21138336165744 can be written as Twenty-one trillion, one hundred thirty-eight billion, three hundred thirty-six million, one hundred sixty-five thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1138336165744 × 10¹³

Factors of 21138336165744

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 10445

Divisors of 21138336165744

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 271 336 378 432 504 542 756 813 1008 1084 1512 1626 1897 2168 2439 3024 3252 3794 4336 4878 4931 5231 5691 6504 7317 7588 9756 9862 10462 11382 13008 14634 14793 15176 15693 17073 19512 19724 20924 22764 29268 29586 30352 31386 34146 34517 36617 39024 39448 41848 44379 45528 47079 51219 58536 59172 62772 68292 69034 73234 78896 83696 88758 91056 94158 102438 103551 109851 117072 118344 125544 133137 136584 138068 141237 146468 177516 188316 204876 207102 219702 236688 251088 266274 273168 276136 282474 292936 310653 329553 355032 376632 409752 414204 439404 532548 552272 564948 585872 621306 659106 710064 753264 819504 828408 878808 931959 988659 1065096 1129896 1242612 1318212 1336301 1417601 1656816 1757616 1863918 1977318 2130192 2259792 2485224 2636424 2672602 2835202 3727836 3954636 4008903 4252803 4970448 5272848 5345204 5670404 7455672 7909272 8017806 8505606 9354107 9923207 10690408 11340808 12026709 12758409 14911344 15818544 16035612 17011212 18708214 19846414 21380816 22681616 24053418 25516818 25794061 28062321 29769621 32071224 34022424 36080127 37416428 38275227 39692828 48106836 51033636 51588122 56124642 59539242 64142448 68044848 72160254 74832856 76550454 77382183 79385656 84186963 89308863 96213672 102067272 103176244 112249284 119078484 144320508 149665712 153100908 154764366 158771312 168373926 178617726 180558427 192427344 204134544 206352488 224498568 232146549 238156968 252560889 267926589 288641016 306201816 309528732 336747852 357235452 361116854 412704976 448997136 464293098 476313936 505121778 535853178 541675281 577282032 612403632 619057464 673495704 696439647 714470904 722233708 928586196 1010243556 1071706356 1083350562 1238114928 1346991408 1392879294 1428941808 1444467416 1625025843 1857172392 2020487112 2143412712 2166701124 2785758588 2888934832 3250051686 3714344784 4040974224 4286825424 4333402248 4875077529 5571517176 6500103372 6990190531 8666804496 9750155058 11143034352 13000206744 13980381062 19500310116 20970571593 26000413488 27960762124 39000620232 41941143186 48931333717 55921524248 62911714779 78001240464 83882286372 97862667434 111843048496 125823429558 146794001151 167764572744 188735144337 195725334868 251646859116 293588002302 335529145488 377470288674 391450669736 440382003453 503293718232 587176004604 754940577348 782901339472 880764006906 1006587436464 1174352009208 1321146010359 1509881154696 1761528013812 2348704018416 2642292020718 3019762309392 3523056027624 5284584041436 7046112055248 10569168082872 21138336165744
• Sum of all divisors σ(n): 69625989365760
• Sum of proper divisors (its aliquot sum) s(n): 48487653200016
• 21138336165744 is an abundant number, because the sum of its proper divisors (48487653200016) is greater than itself. Its abundance is 27349317034272

Bases of 21138336165744

• Binary: 100110011100110100111000001001010111101110000₂
• Hexadecimal: 0x1339A704AF70
• Base-36: 7HQTFKSC0

Squares and roots of 21138336165744

• 21138336165744 squared (21138336165744²) is 446829255856000751439073536
• 21138336165744 cubed (21138336165744³) is 9445227018973379682768608479193900150784
• The square root of 21138336165744 is 4597644.6323899371
• The cube root of 21138336165744 is 27649.6900168725

Scales and comparisons

• 21,138,336,165,744 seconds is equal to 672,133 years, 36 weeks, 4 days, 14 hours, 2 minutes, 24 seconds.
• To count from 1 to 21,138,336,165,744 would take you about one million, six hundred eighty thousand, three hundred thirty-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 21138336165744 cubic inches would be around 2304.1 feet tall.

Recreational maths with 21138336165744

• 21138336165744 backwards is 44756163383112
• 21138336165744 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21138336165744's digits is 54
• More coming soon!