21091075488

Names of 21091075488

• Cardinal: 21091075488 can be written as Twenty-one billion, ninety-one million, seventy-five thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1091075488 × 10¹⁰

Factors of 21091075488

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3401

Divisors of 21091075488

• Number of divisors d(n): 300
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 72 81 84 96 98 108 112 126 144 147 162 168 189 196 216 224 252 288 294 324 336 343 378 392 432 441 504 567 588 648 672 686 756 784 864 882 1008 1029 1134 1176 1296 1323 1372 1512 1568 1764 2016 2058 2268 2352 2401 2592 2646 2744 3024 3087 3389 3528 3969 4116 4536 4704 4802 5292 5488 6048 6174 6778 7056 7203 7938 8232 9072 9261 9604 10167 10584 10976 12348 13556 14112 14406 15876 16464 18144 18522 19208 20334 21168 21609 23723 24696 27112 27783 28812 30501 31752 32928 37044 38416 40668 42336 43218 47446 49392 54224 55566 57624 61002 63504 64827 71169 74088 76832 81336 86436 91503 94892 98784 108448 111132 115248 122004 127008 129654 142338 148176 162672 166061 172872 183006 189784 194481 213507 222264 230496 244008 259308 274509 284676 296352 325344 332122 345744 366012 379568 388962 427014 444528 488016 498183 518616 549018 569352 640521 664244 691488 732024 759136 777924 854028 889056 976032 996366 1037232 1098036 1138704 1162427 1281042 1328488 1464048 1494549 1555848 1708056 1921563 1992732 2074464 2196072 2277408 2324854 2562084 2656976 2928096 2989098 3111696 3416112 3487281 3843126 3985464 4392144 4483647 4649708 5124168 5313952 5978196 6223392 6832224 6974562 7686252 7970928 8136989 8784288 8967294 9299416 10248336 10461843 11956392 13450941 13949124 15372504 15941856 16273978 17934588 18598832 20496672 20923686 23912784 24410967 26901882 27898248 30745008 31385529 32547956 35869176 37197664 41847372 47825568 48821934 53803764 55796496 61490016 62771058 65095912 71738352 73232901 83694744 94156587 97643868 107607528 111592992 125542116 130191824 143476704 146465802 167389488 188313174 195287736 215215056 219698703 251084232 260383648 292931604 334778976 376626348 390575472 430430112 439397406 502168464 585863208 659096109 753252696 781150944 878794812 1004336928 1171726416 1318192218 1506505392 1757589624 2343452832 2636384436 3013010784 3515179248 5272768872 7030358496 10545537744 21091075488
• Sum of all divisors σ(n): 72383357970
• Sum of proper divisors (its aliquot sum) s(n): 51292282482
• 21091075488 is an abundant number, because the sum of its proper divisors (51292282482) is greater than itself. Its abundance is 30201206994

Bases of 21091075488

• Binary: 10011101001001000000100010110100000₂
• Hexadecimal: 0x4E92045A0
• Base-36: 9OT2Y00

Squares and roots of 21091075488

• 21091075488 squared (21091075488²) is 444833465240514438144
• 21091075488 cubed (21091075488³) is 9382016194976314090849010614272
• The square root of 21091075488 is 145227.6677771835
• The cube root of 21091075488 is 2762.9068429089

Scales and comparisons

• 21,091,075,488 seconds is equal to 670 years, 32 weeks, 5 days, 16 hours, 4 minutes, 48 seconds.
• To count from 1 to 21,091,075,488 would take you about one thousand, three hundred forty-one 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 21091075488 cubic inches would be around 230.2 feet tall.

Recreational maths with 21091075488

• 21091075488 backwards is 88457019012
• The number of decimal digits it has is: 11
• The sum of 21091075488's digits is 45
• More coming soon!