21366009390

Names of 21366009390

• Cardinal: 21366009390 can be written as Twenty-one billion, three hundred sixty-six million, nine thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.136600939 × 10¹⁰

Factors of 21366009390

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 13532

Divisors of 21366009390

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 10 11 15 19 22 23 30 33 38 46 55 57 66 69 95 110 114 115 121 138 165 190 209 230 242 253 285 330 345 363 418 437 506 570 605 627 690 726 759 874 1045 1210 1254 1265 1311 1518 1815 2090 2185 2299 2530 2622 2783 3135 3630 3795 4370 4598 4807 5566 6270 6555 6897 7590 8349 9614 11495 13110 13469 13794 13915 14421 16698 22990 24035 26938 27830 28842 34485 40407 41745 48070 52877 67345 68970 72105 80814 83490 105754 134690 144210 148159 158631 202035 255911 264385 296318 309787 317262 404070 444477 511822 528770 619574 740795 767733 793155 888954 929361 1279555 1481590 1535466 1548935 1586310 1629749 1858722 2222385 2559110 2815021 3097870 3259498 3407657 3838665 4444770 4646805 4889247 5630042 5885953 6815314 7677330 8148745 8445063 9293610 9778494 10222971 11771906 14075105 16297490 16890126 17038285 17657859 20445942 24446235 28150210 29429765 30965231 34076570 35315718 37484227 42225315 48892470 51114855 58859530 61930462 64745483 74968454 84450630 88289295 92895693 102229710 112452681 129490966 154826155 176578590 185791386 187421135 194236449 224905362 309652310 323727415 374842270 388472898 464478465 562263405 647454830 712200313 928956930 971182245 1124526810 1424400626 1942364490 2136600939 3561001565 4273201878 7122003130 10683004695 21366009390
• Sum of all divisors σ(n): 61914585600
• Sum of proper divisors (its aliquot sum) s(n): 40548576210
• 21366009390 is an abundant number, because the sum of its proper divisors (40548576210) is greater than itself. Its abundance is 19182566820

Bases of 21366009390

• Binary: 10011111001100000110110111000101110₂
• Hexadecimal: 0x4F9836E2E
• Base-36: 9TCRQCU

Squares and roots of 21366009390

• 21366009390 squared (21366009390²) is 456506357253568172100
• 21366009390 cubed (21366009390³) is 9753719115674432176093736019000
• The square root of 21366009390 is 146171.1647008395
• The cube root of 21366009390 is 2774.8603945677

Scales and comparisons

• 21,366,009,390 seconds is equal to 679 years, 19 weeks, 2 days, 18 hours, 36 minutes, 30 seconds.
• To count from 1 to 21,366,009,390 would take you about one thousand, three hundred fifty-eight 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 21366009390 cubic inches would be around 231.2 feet tall.

Recreational maths with 21366009390

• 21366009390 backwards is 09390066312
• The number of decimal digits it has is: 11
• The sum of 21366009390's digits is 39
• More coming soon!