21289720270

Names of 21289720270

• Cardinal: 21289720270 can be written as Twenty-one billion, two hundred eighty-nine million, seven hundred twenty thousand, two hundred seventy.

Scientific notation

• Scientific notation: 2.128972027 × 10¹⁰

Factors of 21289720270

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 411

Divisors of 21289720270

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 7 10 13 14 26 31 35 41 62 65 70 79 82 91 130 155 158 182 205 217 233 287 310 395 403 410 434 455 466 533 553 574 790 806 910 1027 1066 1085 1106 1165 1271 1435 1631 2015 2054 2170 2330 2449 2542 2665 2765 2821 2870 3029 3239 3262 3731 4030 4898 5135 5330 5530 5642 6058 6355 6478 7189 7223 7462 8155 8897 9553 10270 12245 12710 14105 14378 14446 15145 16195 16310 16523 17143 17794 18407 18655 19106 21203 22673 24490 28210 30290 31837 32390 33046 34286 35945 36115 36814 37310 42107 42406 44485 45346 47765 50561 63674 66871 71890 72230 82615 84214 85715 88970 92035 93899 95530 100409 101122 106015 113365 115661 124189 128849 133742 159185 165230 171430 184070 187798 200818 210535 212030 222859 226730 231322 239291 248378 252805 257698 294749 296143 318370 334355 421070 445718 469495 478582 502045 505610 570617 578305 589498 592286 620945 644245 657293 668710 702863 754687 869323 938990 1004090 1114295 1141234 1156610 1196455 1241890 1288490 1305317 1314586 1405726 1473745 1480715 1509374 1675037 1738646 2073001 2228590 2392910 2610634 2853085 2947490 2961430 3286465 3350074 3514315 3773435 3849859 3994319 4146002 4346615 5282809 5706170 6526585 6572930 7028630 7418021 7546870 7699718 7988638 8375185 8693230 9137219 9810931 10365005 10565618 13053170 14836042 16750370 18274438 19249295 19621862 19971595 20730010 23395297 26414045 26949013 37090105 38498590 39943190 45686095 46790594 49054655 51926147 52828090 53898026 68676517 74180210 91372190 98109310 103852294 116976485 134745065 137353034 163767079 233952970 259630735 269490130 304138861 327534158 343382585 519261470 608277722 686765170 818835395 1520694305 1637670790 2128972027 3041388610 4257944054 10644860135 21289720270
• Sum of all divisors σ(n): 50721914880
• Sum of proper divisors (its aliquot sum) s(n): 29432194610
• 21289720270 is an abundant number, because the sum of its proper divisors (29432194610) is greater than itself. Its abundance is 8142474340

Bases of 21289720270

• Binary: 10011110100111101110101100111001110₂
• Hexadecimal: 0x4F4F759CE
• Base-36: 9S3CLAM

Squares and roots of 21289720270

• 21289720270 squared (21289720270²) is 453252189174848872900
• 21289720270 cubed (21289720270³) is 9649612319297654623565783683000
• The square root of 21289720270 is 145909.9731683891
• The cube root of 21289720270 is 2771.5538324329

Scales and comparisons

• 21,289,720,270 seconds is equal to 676 years, 49 weeks, 1 day, 19 hours, 11 minutes, 10 seconds.
• To count from 1 to 21,289,720,270 would take you about one thousand, three hundred fifty-three 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 21289720270 cubic inches would be around 231 feet tall.

Recreational maths with 21289720270

• 21289720270 backwards is 07202798212
• The number of decimal digits it has is: 11
• The sum of 21289720270's digits is 40
• More coming soon!