21107284715538

Names of 21107284715538

• Cardinal: 21107284715538 can be written as Twenty-one trillion, one hundred seven billion, two hundred eighty-four million, seven hundred fifteen thousand, five hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1107284715538 × 10¹³

Factors of 21107284715538

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 162

Divisors of 21107284715538

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 37 42 49 63 74 98 111 113 126 147 222 226 259 294 333 339 441 518 666 678 777 791 882 1017 1369 1554 1582 1813 2034 2331 2373 2738 3626 4107 4181 4662 4746 5439 5537 7119 8214 8362 9583 10878 11074 12321 12543 12769 14238 16317 16611 19166 24642 25086 25538 28749 29267 32634 33222 37629 38307 49833 50653 57498 58534 67081 75258 76614 86247 87801 89383 99666 101306 114921 134162 151959 154697 172494 175602 178766 201243 204869 229842 263403 268149 303918 309394 354571 402486 409738 455877 464091 472453 526806 536298 603729 614607 625681 709142 804447 911754 928182 944906 1063713 1082879 1207458 1229214 1251362 1392273 1417359 1608894 1843821 1874161 1877043 2127426 2165758 2481997 2784546 2834718 3191139 3248637 3307171 3687642 3748322 3754086 4252077 4963994 5622483 5631129 5723789 6382278 6497274 6614342 7445991 7580153 8504154 9745911 9921513 11244966 11262258 11447578 13119127 14891982 15160306 16867449 17171367 17480761 19491822 19843026 22337973 22740459 23150197 26238254 29764539 33734898 34342734 34961522 39357381 40066523 44675946 45480918 46300394 51514101 52442283 59529078 68221377 69450591 78714762 80133046 91833889 103028202 104884566 118072143 120199569 122365327 136442754 138901182 157326849 183667778 208351773 211780193 236144286 240399138 244730654 275501667 280465661 314653698 360598707 367095981 416703546 423560386 551003334 560931322 635340579 646788157 721197414 734191962 826505001 841396983 856557289 1101287943 1270681158 1293576314 1482461351 1653010002 1682793966 1713114578 1906021737 1940364471 2202575886 2524190949 2569671867 2964922702 3812043474 3880728942 4447384053 4527517099 5048381898 5139343734 5821093413 7709015601 8894768106 9055034198 10377229457 11642186826 13342152159 13582551297 15418031202 20754458914 23931161809 26684304318 27165102594 31131688371 31692619693 40747653891 47862323618 62263376742 63385239386 71793485427 81495307782 93395065113 95077859079 143586970854 167518132663 186790130226 190155718158 215380456281 285233577237 335036265326 430760912562 502554397989 570467154474 1005108795978 1172626928641 1507663193967 2345253857282 3015326387934 3517880785923 7035761571846 10553642357769 21107284715538
• Sum of all divisors σ(n): 55164867932889
• Sum of proper divisors (its aliquot sum) s(n): 34057583217351
• 21107284715538 is an abundant number, because the sum of its proper divisors (34057583217351) is greater than itself. Its abundance is 12950298501813

Bases of 21107284715538

• Binary: 100110011001001101100001101010010100000010010₂
• Hexadecimal: 0x13326C352812
• Base-36: 7HCJWCG0I

Squares and roots of 21107284715538

• 21107284715538 squared (21107284715538²) is 445517468062784069578629444
• 21107284715538 cubed (21107284715538³) is 9403664044146791249980279583423451100872
• The square root of 21107284715538 is 4594266.5046270443
• The cube root of 21107284715538 is 27636.1445843977

Scales and comparisons

• 21,107,284,715,538 seconds is equal to 671,146 years, 18 weeks, 6 days, 19 hours, 12 minutes, 18 seconds.
• To count from 1 to 21,107,284,715,538 would take you about one million, six hundred seventy-seven thousand, eight 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 21107284715538 cubic inches would be around 2303 feet tall.

Recreational maths with 21107284715538

• 21107284715538 backwards is 83551748270112
• The number of decimal digits it has is: 14
• The sum of 21107284715538's digits is 54
• More coming soon!