21019705740

Names of 21019705740

• Cardinal: 21019705740 can be written as Twenty-one billion, nineteen million, seven hundred five thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.101970574 × 10¹⁰

Factors of 21019705740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 399

Divisors of 21019705740

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 33 36 44 45 54 55 60 61 66 81 90 99 108 110 122 132 135 162 165 180 183 198 220 244 270 297 305 317 324 330 366 396 405 495 540 549 594 610 634 660 671 732 810 891 915 951 990 1098 1188 1220 1268 1342 1485 1585 1620 1647 1782 1830 1902 1980 2013 2196 2684 2745 2853 2970 3170 3294 3355 3487 3564 3660 3721 3804 4026 4455 4755 4941 5490 5706 5940 6039 6340 6588 6710 6974 7442 8052 8235 8559 8910 9510 9882 10065 10461 10980 11163 11412 12078 13420 13948 14265 14884 16470 17118 17435 17820 18117 18605 19020 19337 19764 20130 20922 22326 24156 24705 25677 28530 30195 31383 32940 33489 34236 34870 36234 37210 38674 40260 40931 41844 42795 44652 49410 51354 52305 54351 55815 57060 58011 60390 62766 66978 69740 72468 74420 77348 81862 85590 90585 94149 96685 98820 100467 102708 104610 108702 111630 116022 120780 122793 125532 128385 133956 156915 163724 167445 171180 174033 181170 188298 193370 200934 204655 209220 212707 217404 223260 232044 245586 256770 271755 282447 290055 301401 313830 334890 348066 362340 368379 376596 386740 401868 409310 425414 470745 491172 502335 513540 522099 543510 564894 580110 602802 613965 627660 638121 669780 696132 736758 818620 850828 870165 941490 1004670 1044198 1063535 1087020 1105137 1129788 1160220 1179557 1205604 1227930 1276242 1412235 1473516 1507005 1566297 1740330 1841895 1882980 1914363 2009340 2088396 2127070 2210274 2359114 2455860 2552484 2610495 2824470 3014010 3132594 3190605 3315411 3480660 3538671 3683790 3828726 4254140 4420548 4718228 5220990 5525685 5648940 5743089 5897785 6028020 6265188 6381210 6630822 7077342 7367580 7657452 7831485 9571815 10441980 10616013 11051370 11486178 11795570 12762420 12975127 13261644 14154684 15662970 16577055 17229267 17693355 19143630 21232026 22102740 22972356 23591140 25950254 28715445 31325940 31848039 33154110 34458534 35386710 38287260 38925381 42464052 51900508 53080065 57430890 63696078 64875635 66308220 68917068 70773420 77850762 86146335 95544117 106160130 114861780 116776143 127392156 129751270 155701524 159240195 172292670 191088234 194626905 212320260 233552286 259502540 318480390 344585340 350328429 382176468 389253810 467104572 477720585 583880715 636960780 700656858 778507620 955441170 1050985287 1167761430 1401313716 1751642145 1910882340 2101970574 2335522860 3503284290 4203941148 5254926435 7006568580 10509852870 21019705740
• Sum of all divisors σ(n): 73363386096
• Sum of proper divisors (its aliquot sum) s(n): 52343680356
• 21019705740 is an abundant number, because the sum of its proper divisors (52343680356) is greater than itself. Its abundance is 31323974616

Bases of 21019705740

• Binary: 10011100100110111110100000110001100₂
• Hexadecimal: 0x4E4DF418C
• Base-36: 9NML8R0

Squares and roots of 21019705740

• 21019705740 squared (21019705740²) is 441828029396188947600
• 21019705740 cubed (21019705740³) is 9287095165591961555992279224000
• The square root of 21019705740 is 144981.7427816345
• The cube root of 21019705740 is 2759.7868691755

Scales and comparisons

• 21,019,705,740 seconds is equal to 668 years, 18 weeks, 5 days, 15 hours, 9 minutes.
• To count from 1 to 21,019,705,740 would take you about one thousand, three hundred thirty-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 21019705740 cubic inches would be around 230 feet tall.

Recreational maths with 21019705740

• 21019705740 backwards is 04750791012
• 21019705740 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21019705740's digits is 36
• More coming soon!