21007967760

Names of 21007967760

• Cardinal: 21007967760 can be written as Twenty-one billion, seven million, nine hundred sixty-seven thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 2.100796776 × 10¹⁰

Factors of 21007967760

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4131

Divisors of 21007967760

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 36 39 40 45 48 52 54 60 65 72 78 80 90 104 108 117 120 130 135 144 156 180 191 195 208 216 234 240 260 270 312 351 360 382 390 432 468 520 540 573 585 624 702 720 764 780 936 955 1040 1080 1146 1170 1404 1528 1560 1719 1755 1872 1910 2160 2292 2340 2483 2808 2865 3056 3120 3438 3510 3820 3917 4584 4680 4966 5157 5616 5730 6876 7020 7449 7640 7834 8595 9168 9360 9932 10314 11460 11751 12415 13752 14040 14898 15280 15668 17190 19585 19864 20628 22347 22920 23502 24830 25785 27504 28080 29796 31336 34380 35253 37245 39170 39728 41256 44694 45840 47004 49660 50921 51570 58755 59592 62672 67041 68760 70506 74490 78340 82512 89388 94008 99320 101842 103140 105759 111735 117510 119184 134082 137520 141012 148980 152763 156680 176265 178776 188016 198640 203684 206280 211518 223470 235020 254605 268164 282024 297960 305526 313360 335205 352530 357552 407368 412560 423036 446940 458289 470040 509210 528795 536328 564048 595920 611052 670410 705060 748147 763815 814736 846072 893880 916578 940080 1018420 1057590 1072656 1222104 1340820 1374867 1410120 1496294 1527630 1692144 1787760 1833156 2036840 2115180 2244441 2291445 2444208 2681640 2749734 2820240 2992588 3055260 3666312 3740735 4073680 4230360 4488882 4582890 5363280 5499468 5985176 6110520 6733323 6874335 7332624 7481470 8460720 8977764 9165780 9725911 10998936 11222205 11970352 12221040 13466646 13748670 14962940 17955528 18331560 19451822 20199969 21997872 22444410 26933292 27497340 29177733 29925880 33666615 35911056 36663120 38903644 40399938 44888820 48629555 53866584 54994680 58355466 59851760 67333230 77807288 80799876 87533199 89777640 97259110 100999845 107733168 109989360 116710932 134666460 145888665 155614576 161599752 175066398 179555280 194518220 201999690 233421864 262599597 269332920 291777330 323199504 350132796 389036440 403999380 437665995 466843728 525199194 538665840 583554660 700265592 778072880 807998760 875331990 1050398388 1167109320 1312997985 1400531184 1615997520 1750663980 2100796776 2334218640 2625995970 3501327960 4201593552 5251991940 7002655920 10503983880 21007967760
• Sum of all divisors σ(n): 78354984960
• Sum of proper divisors (its aliquot sum) s(n): 57347017200
• 21007967760 is an abundant number, because the sum of its proper divisors (57347017200) is greater than itself. Its abundance is 36339049440

Bases of 21007967760

• Binary: 10011100100001011000010011000010000₂
• Hexadecimal: 0x4E42C2610
• Base-36: 9NFLNO0

Squares and roots of 21007967760

• 21007967760 squared (21007967760²) is 441334709405199417600
• 21007967760 cubed (21007967760³) is 9271545346553398141311576576000
• The square root of 21007967760 is 144941.2562385189
• The cube root of 21007967760 is 2759.2730599701

Scales and comparisons

• 21,007,967,760 seconds is equal to 667 years, 51 weeks, 2 days, 18 hours, 36 minutes.
• To count from 1 to 21,007,967,760 would take you about one thousand, three hundred thirty-five 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 21007967760 cubic inches would be around 229.9 feet tall.

Recreational maths with 21007967760

• 21007967760 backwards is 06776970012
• 21007967760 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21007967760's digits is 45
• More coming soon!