21638673792

Names of 21638673792

• Cardinal: 21638673792 can be written as Twenty-one billion, six hundred thirty-eight million, six hundred seventy-three thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1638673792 × 10¹⁰

Factors of 21638673792

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 911

Divisors of 21638673792

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 23 24 32 36 38 46 48 53 57 64 69 72 76 92 96 106 114 128 138 144 152 159 171 184 192 207 212 228 276 288 304 318 342 368 384 414 424 437 456 477 552 576 608 636 684 736 811 828 848 874 912 954 1007 1104 1152 1216 1219 1272 1311 1368 1472 1622 1656 1696 1748 1824 1908 2014 2208 2432 2433 2438 2544 2622 2736 2944 3021 3244 3312 3392 3496 3648 3657 3816 3933 4028 4416 4866 4876 5088 5244 5472 6042 6488 6624 6784 6992 7296 7299 7314 7632 7866 8056 8832 9063 9732 9752 10176 10488 10944 10971 12084 12976 13248 13984 14598 14628 15264 15409 15732 16112 18126 18653 19464 19504 20352 20976 21888 21942 23161 24168 25952 26496 27968 29196 29256 30528 30818 31464 32224 36252 37306 38928 39008 41952 42983 43884 46227 46322 48336 51904 55936 55959 58392 58512 61056 61636 62928 64448 69483 72504 74612 77856 78016 83904 85966 87768 92454 92644 96672 103808 111918 116784 117024 123272 125856 128896 128949 138681 138966 145008 149224 155712 156032 167808 167877 171932 175536 184908 185288 193344 208449 223836 233568 234048 246544 251712 257898 277362 277932 290016 298448 311424 335754 343864 351072 354407 369816 370576 386688 386847 416898 447672 467136 468096 493088 503424 515796 554724 555864 580032 596896 671508 687728 702144 708814 739632 741152 773694 816677 833796 895344 934272 986176 988609 1031592 1063221 1109448 1111728 1160064 1193792 1343016 1375456 1404288 1417628 1479264 1482304 1547388 1633354 1667592 1790688 1972352 1977218 2063184 2126442 2218896 2223456 2387584 2450031 2686032 2750912 2835256 2958528 2964608 2965827 3094776 3189663 3266708 3335184 3581376 3954436 4126368 4252884 4437792 4446912 4900062 5372064 5501824 5670512 5917056 5931654 6189552 6379326 6533416 6670368 7162752 7350093 7908872 8252736 8505768 8875584 8893824 8897481 9800124 10744128 11341024 11863308 12379104 12758652 13066832 13340736 14700186 15817744 16505472 17011536 17751168 17794962 18783571 19600248 21488256 22682048 23726616 24758208 25517304 26133664 26681472 29400372 31635488 34023072 35589924 37567142 39200496 45364096 47453232 49516416 51034608 52267328 56350713 58800744 63270976 68046144 71179848 75134284 78400992 94906464 102069216 104534656 112701426 117601488 126541952 136092288 142359696 150268568 156801984 169052139 189812928 204138432 225402852 235202976 284719392 300537136 313603968 338104278 379625856 408276864 450805704 470405952 569438784 601074272 676208556 901611408 940811904 1138877568 1202148544 1352417112 1803222816 2404297088 2704834224 3606445632 5409668448 7212891264 10819336896 21638673792
• Sum of all divisors σ(n): 69770937600
• Sum of proper divisors (its aliquot sum) s(n): 48132263808
• 21638673792 is an abundant number, because the sum of its proper divisors (48132263808) is greater than itself. Its abundance is 26493590016

Bases of 21638673792

• Binary: 10100001001110000111111010110000000₂
• Hexadecimal: 0x509C3F580
• Base-36: 9XV3VK0

Squares and roots of 21638673792

• 21638673792 squared (21638673792²) is 468232203476587659264
• 21638673792 cubed (21638673792³) is 10131923909939248668106542809088
• The square root of 21638673792 is 147100.8966390077
• The cube root of 21638673792 is 2786.6144188165

Scales and comparisons

• 21,638,673,792 seconds is equal to 688 years, 2 weeks, 1 day, 14 hours, 43 minutes, 12 seconds.
• To count from 1 to 21,638,673,792 would take you about one thousand, three hundred seventy-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 21638673792 cubic inches would be around 232.2 feet tall.

Recreational maths with 21638673792

• 21638673792 backwards is 29737683612
• The number of decimal digits it has is: 11
• The sum of 21638673792's digits is 54
• More coming soon!