21064727970

Names of 21064727970

• Cardinal: 21064727970 can be written as Twenty-one billion, sixty-four million, seven hundred twenty-seven thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 2.106472797 × 10¹⁰

Factors of 21064727970

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6334

Divisors of 21064727970

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 5 6 9 10 11 13 15 18 22 26 27 29 30 33 39 45 54 55 58 65 66 78 81 87 90 99 110 117 130 135 143 145 162 165 174 195 198 234 261 270 286 290 297 319 330 351 377 390 405 429 435 495 522 585 594 638 702 715 754 783 810 858 870 891 957 990 1053 1131 1170 1287 1305 1430 1485 1566 1595 1755 1782 1885 1914 2106 2145 2262 2349 2574 2610 2871 2970 3190 3393 3510 3770 3861 3915 4147 4290 4455 4698 4785 5265 5655 5742 6271 6435 6786 7722 7830 8294 8613 8910 9570 10179 10530 11310 11583 11745 12441 12542 12870 14355 16965 17226 18813 19305 20358 20735 23166 23490 24882 25839 28710 30537 31355 33930 37323 37626 38610 41470 43065 50895 51678 56439 57915 61074 62205 62710 68981 74646 81523 86130 94065 101790 111969 112878 115830 124410 129195 137962 152685 163046 169317 181859 186615 188130 206943 223938 244569 258390 282195 305370 335907 338634 344905 363718 373230 407615 413886 489138 507951 545577 559845 564390 620829 671814 689810 733707 815230 846585 896753 909295 1015902 1034715 1091154 1119690 1222845 1241658 1467414 1636731 1679535 1693170 1793506 1818590 1862487 2000449 2069430 2201121 2364167 2445690 2539755 2690259 2727885 3104145 3273462 3359070 3668535 3724974 4000898 4402242 4483765 4728334 4910193 5079510 5380518 5455770 5587461 6001347 6208290 6603363 7092501 7337070 8070777 8183655 8967530 9312435 9820386 10002245 11005605 11174922 11820835 12002694 13206726 13451295 14185002 14730579 16141554 16367310 18004041 18624870 20004490 21277503 22011210 23641670 24212331 24550965 26005837 26902590 27937305 29461158 30006735 33016815 35462505 36008082 40353885 42555006 48424662 49101930 52011674 54012123 55874610 60013470 63832509 66033630 70925010 72636993 73652895 78017511 80707770 90020205 106387515 108024246 121061655 127665018 130029185 145273986 147305790 156035022 162036369 180040410 191497527 212775030 234052533 242123310 260058370 270060615 319162545 324072738 363184965 382995054 390087555 468105066 540121230 638325090 702157599 726369930 780175110 810181845 957487635 1170262665 1404315198 1620363690 1914975270 2106472797 2340525330 3510787995 4212945594 7021575990 10532363985 21064727970
• Sum of all divisors σ(n): 68848496640
• Sum of proper divisors (its aliquot sum) s(n): 47783768670
• 21064727970 is an abundant number, because the sum of its proper divisors (47783768670) is greater than itself. Its abundance is 26719040700

Bases of 21064727970

• Binary: 10011100111100011100011110110100010₂
• Hexadecimal: 0x4E78E3DA2
• Base-36: 9ODE84I

Squares and roots of 21064727970

• 21064727970 squared (21064727970²) is 443722764450100320900
• 21064727970 cubed (21064727970³) is 9346899327237749898968205573000
• The square root of 21064727970 is 145136.9283469923
• The cube root of 21064727970 is 2761.7558652255

Scales and comparisons

• 21,064,727,970 seconds is equal to 669 years, 41 weeks, 1 day, 17 hours, 19 minutes, 30 seconds.
• To count from 1 to 21,064,727,970 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 21064727970 cubic inches would be around 230.1 feet tall.

Recreational maths with 21064727970

• 21064727970 backwards is 07972746012
• 21064727970 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21064727970's digits is 45
• More coming soon!