21018548824

Names of 21018548824

• Cardinal: 21018548824 can be written as Twenty-one billion, eighteen million, five hundred forty-eight thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1018548824 × 10¹⁰

Factors of 21018548824

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 365

Divisors of 21018548824

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 7 8 13 14 26 28 31 49 52 56 62 83 91 98 104 124 166 182 196 217 229 248 332 343 364 392 403 434 458 581 637 664 686 728 806 868 916 1079 1162 1274 1372 1519 1603 1612 1736 1832 2158 2324 2548 2573 2744 2821 2977 3038 3206 3224 4067 4316 4459 4648 5096 5146 5642 5954 6076 6412 7099 7553 8134 8632 8918 10292 10633 11221 11284 11908 12152 12824 14198 15106 16268 17836 18011 19007 19747 20584 20839 21266 22442 22568 23816 28396 28469 30212 32536 33449 35672 36022 38014 39494 41678 42532 44884 49693 52871 56792 56938 60424 66898 72044 76028 78547 78988 83356 85064 89768 92287 99386 105742 113876 126077 133049 133796 138229 144088 145873 152056 157094 157976 166712 184574 198772 211484 227752 234143 247091 252154 266098 267592 276458 291746 314188 347851 369148 370097 397544 422968 468286 494182 504308 532196 552916 583492 589217 628376 646009 695702 738296 740194 882539 931343 936572 988364 1008616 1021111 1064392 1105832 1166984 1178434 1292018 1391404 1480388 1639001 1729637 1765078 1862686 1873144 1976728 2042222 2356868 2434957 2584036 2782808 2960776 3278002 3459274 3530156 3725372 4084444 4124519 4522063 4713736 4869914 5168072 6519401 6556004 6918548 7060312 7450744 7659821 8168888 8249038 9044126 9739828 11473007 12107459 13038802 13112008 13837096 15319642 16498076 18088252 19479656 22946014 24214918 26077604 28871633 30639284 31654441 32996152 36176504 45892028 48429836 52155208 53618747 57743266 61278568 63308882 84752213 91784056 96859672 107237494 115486532 126617764 169504426 202101431 214474988 230973064 253235528 339008852 375331229 404202862 428949976 678017704 750662458 808405724 1501324916 1616811448 2627318603 3002649832 5254637206 10509274412 21018548824
• Sum of all divisors σ(n): 51932160000
• Sum of proper divisors (its aliquot sum) s(n): 30913611176
• 21018548824 is an abundant number, because the sum of its proper divisors (30913611176) is greater than itself. Its abundance is 9895062352

Bases of 21018548824

• Binary: 10011100100110011011001101001011000₂
• Hexadecimal: 0x4E4CD9A58
• Base-36: 9NLWG2G

Squares and roots of 21018548824

• 21018548824 squared (21018548824²) is 441779394666871782976
• 21018548824 cubed (21018548824³) is 9285561776242809785828988020224
• The square root of 21018548824 is 144977.7528588439
• The cube root of 21018548824 is 2759.7362357333

Scales and comparisons

• 21,018,548,824 seconds is equal to 668 years, 16 weeks, 6 days, 5 hours, 47 minutes, 4 seconds.
• To count from 1 to 21,018,548,824 would take you about one thousand, three hundred thirty-six 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 21018548824 cubic inches would be around 230 feet tall.

Recreational maths with 21018548824

• 21018548824 backwards is 42884581012
• The number of decimal digits it has is: 11
• The sum of 21018548824's digits is 43
• More coming soon!