21052504746

Names of 21052504746

• Cardinal: 21052504746 can be written as Twenty-one billion, fifty-two million, five hundred four thousand, seven hundred forty-six.

Scientific notation

• Scientific notation: 2.1052504746 × 10¹⁰

Factors of 21052504746

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5256

Divisors of 21052504746

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 49 54 63 78 81 91 98 117 126 147 162 169 182 189 234 243 273 294 338 351 378 441 486 507 546 567 637 702 819 882 1014 1053 1134 1183 1274 1323 1521 1638 1701 1911 2106 2366 2457 2646 3042 3159 3402 3549 3822 3969 4563 4914 5231 5733 6318 7098 7371 7938 8281 9126 10462 10647 11466 11907 13689 14742 15693 16562 17199 21294 22113 23814 24843 27378 31386 31941 34398 36617 41067 44226 47079 49686 51597 63882 68003 73234 74529 82134 94158 95823 103194 109851 136006 141237 149058 154791 191646 204009 219702 223587 256319 282474 287469 309582 329553 408018 423711 447174 476021 512638 574938 612027 659106 670761 768957 847422 884039 952042 988659 1224054 1271133 1341522 1428063 1537914 1768078 1836081 1977318 2012283 2306871 2542266 2652117 2856126 2965977 3332147 3672162 4024566 4284189 4613742 5304234 5508243 5931954 6188273 6664294 6920613 7956351 8568378 8897931 9996441 11016486 12376546 12852567 13841226 15912702 16524729 17795862 18564819 19992882 20761839 23869053 25705134 29989323 33049458 37129638 38557701 41523678 43317911 47738106 55694457 59978646 62285517 71607159 77115402 86635822 89967969 111388914 115673103 124571034 129953733 143214318 167083371 179935938 214821477 231346206 259907466 269903907 334166742 389861199 429642954 501250113 539807814 779722398 809711721 1002500226 1169583597 1503750339 1619423442 2339167194 3007500678 3508750791 7017501582 10526252373 21052504746
• Sum of all divisors σ(n): 59595891264
• Sum of proper divisors (its aliquot sum) s(n): 38543386518
• 21052504746 is an abundant number, because the sum of its proper divisors (38543386518) is greater than itself. Its abundance is 17490881772

Bases of 21052504746

• Binary: 10011100110110100111011101010101010₂
• Hexadecimal: 0x4E6D3BAAA
• Base-36: 9O648MI

Squares and roots of 21052504746

• 21052504746 squared (21052504746²) is 443207956080352524516
• 21052504746 cubed (21052504746³) is 9330637598846581079726171352936
• The square root of 21052504746 is 145094.8129534615
• The cube root of 21052504746 is 2761.2215740917

Scales and comparisons

• 21,052,504,746 seconds is equal to 669 years, 21 weeks, 5 hours, 59 minutes, 6 seconds.
• To count from 1 to 21,052,504,746 would take you about one thousand, three hundred thirty-eight 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 21052504746 cubic inches would be around 230.1 feet tall.

Recreational maths with 21052504746

• 21052504746 backwards is 64740525012
• The number of decimal digits it has is: 11
• The sum of 21052504746's digits is 36
• More coming soon!