21057094240

Names of 21057094240

• Cardinal: 21057094240 can be written as Twenty-one billion, fifty-seven million, ninety-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.105709424 × 10¹⁰

Factors of 21057094240

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3697

Divisors of 21057094240

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 65 70 80 91 104 112 130 140 160 182 208 224 260 280 364 416 449 455 520 560 728 898 910 1040 1120 1456 1796 1820 2080 2245 2912 3143 3221 3592 3640 4490 5837 6286 6442 7184 7280 8980 11674 12572 12884 14368 14560 15715 16105 17960 22547 23348 25144 25768 29185 31430 32210 35920 40859 41873 45094 46696 50288 51536 58370 62860 64420 71840 81718 83746 90188 93392 100576 103072 112735 116740 125720 128840 163436 167492 180376 186784 204295 209365 225470 233480 251440 257680 293111 326872 334984 360752 408590 418730 450940 466960 502880 515360 586222 653744 669968 721504 817180 837460 901880 933920 1172444 1307488 1339936 1446229 1465555 1634360 1674920 1803760 2344888 2892458 2931110 3268720 3349840 3607520 4689776 5784916 5862220 6537440 6699680 7231145 9379552 10123603 11569832 11724440 14462290 18800977 20247206 23139664 23448880 28924580 37601954 40494412 46279328 46897760 50618015 57849160 75203908 80988824 94004885 101236030 115698320 131606839 150407816 161977648 188009770 202472060 231396640 263213678 300815632 323955296 376019540 404944120 526427356 601631264 658034195 752039080 809888240 1052854712 1316068390 1504078160 1619776480 2105709424 2632136780 3008156320 4211418848 5264273560 10528547120 21057094240
• Sum of all divisors σ(n): 61382966400
• Sum of proper divisors (its aliquot sum) s(n): 40325872160
• 21057094240 is an abundant number, because the sum of its proper divisors (40325872160) is greater than itself. Its abundance is 19268777920

Bases of 21057094240

• Binary: 10011100111000110011100001001100000₂
• Hexadecimal: 0x4E719C260
• Base-36: 9O8ULWG

Squares and roots of 21057094240

• 21057094240 squared (21057094240²) is 443401217832241177600
• 21057094240 cubed (21057094240³) is 9336741230024270987131777024000
• The square root of 21057094240 is 145110.6275915035
• The cube root of 21057094240 is 2761.4222103775

Scales and comparisons

• 21,057,094,240 seconds is equal to 669 years, 28 weeks, 4 days, 8 hours, 50 minutes, 40 seconds.
• To count from 1 to 21,057,094,240 would take you about one thousand, three hundred thirty-nine 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 21057094240 cubic inches would be around 230.1 feet tall.

Recreational maths with 21057094240

• 21057094240 backwards is 04249075012
• The number of decimal digits it has is: 11
• The sum of 21057094240's digits is 34
• More coming soon!