21074968720

Names of 21074968720

• Cardinal: 21074968720 can be written as Twenty-one billion, seventy-four million, nine hundred sixty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.107496872 × 10¹⁰

Factors of 21074968720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7851

Divisors of 21074968720

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 13 16 19 20 26 38 40 52 65 76 80 95 104 130 139 152 190 208 247 260 278 304 380 494 520 556 695 760 988 1040 1112 1235 1390 1520 1807 1976 2224 2470 2641 2780 3614 3952 4940 5282 5560 7228 7673 9035 9880 10564 11120 13205 14456 15346 18070 19760 21128 26410 28912 30692 34333 36140 38365 42256 52820 61384 68666 72280 76730 99749 105640 122768 137332 144560 145787 153460 171665 199498 211280 274664 291574 306920 343330 398996 498745 549328 583148 613840 686660 728935 797992 997490 1066547 1166296 1373320 1457870 1595984 1895231 1994980 2133094 2332592 2746640 2915740 3790462 3989960 4266188 5332735 5831480 7580924 7979920 8532376 9476155 10665470 11662960 13865111 15161848 17064752 18952310 20264393 21330940 27730222 30323696 37904620 40528786 42661880 55460444 69325555 75809240 81057572 85323760 101321965 110920888 138651110 151618480 162115144 202643930 221841776 263437109 277302220 324230288 405287860 526874218 554604440 810575720 1053748436 1109208880 1317185545 1621151440 2107496872 2634371090 4214993744 5268742180 10537484360 21074968720
• Sum of all divisors σ(n): 55952668800
• Sum of proper divisors (its aliquot sum) s(n): 34877700080
• 21074968720 is an abundant number, because the sum of its proper divisors (34877700080) is greater than itself. Its abundance is 13802731360

Bases of 21074968720

• Binary: 10011101000001010101000000010010000₂
• Hexadecimal: 0x4E82A8090
• Base-36: 9OJHPXS

Squares and roots of 21074968720

• 21074968720 squared (21074968720²) is 444154306548978438400
• 21074968720 cubed (21074968720³) is 9360538117373011737234446848000
• The square root of 21074968720 is 145172.2036754971
• The cube root of 21074968720 is 2762.2033410475

Scales and comparisons

• 21,074,968,720 seconds is equal to 670 years, 6 weeks, 1 day, 5 hours, 58 minutes, 40 seconds.
• To count from 1 to 21,074,968,720 would take you about one thousand, three hundred forty 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 21074968720 cubic inches would be around 230.2 feet tall.

Recreational maths with 21074968720

• 21074968720 backwards is 02786947012
• The number of decimal digits it has is: 11
• The sum of 21074968720's digits is 46
• More coming soon!