21318920100

Names of 21318920100

• Cardinal: 21318920100 can be written as Twenty-one billion, three hundred eighteen million, nine hundred twenty thousand, one hundred.

Scientific notation

• Scientific notation: 2.13189201 × 10¹⁰

Factors of 21318920100

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 198

Divisors of 21318920100

• Number of divisors d(n): 243
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 30 31 36 45 50 60 62 75 90 93 100 124 150 155 157 180 186 225 279 300 310 314 372 450 465 471 558 620 628 775 785 900 930 942 961 1116 1395 1413 1550 1570 1860 1884 1922 2325 2355 2790 2826 2883 3100 3140 3844 3925 4650 4710 4805 4867 5580 5652 5766 6975 7065 7850 8649 9300 9420 9610 9734 11532 11775 13950 14130 14415 14601 15700 17298 19220 19468 23550 24025 24335 24649 27900 28260 28830 29202 34596 35325 43245 43803 47100 48050 48670 49298 57660 58404 70650 72075 73005 73947 86490 87606 96100 97340 98596 121675 123245 141300 144150 146010 147894 150877 172980 175212 216225 219015 221841 243350 246490 288300 292020 295788 301754 365025 369735 432450 438030 443682 452631 486700 492980 603508 616225 730050 739470 754385 764119 864900 876060 887364 905262 1095075 1109205 1232450 1357893 1460100 1478940 1508770 1528238 1810524 1848675 2190150 2218410 2263155 2292357 2464900 2715786 3017540 3056476 3697350 3771925 3820595 4380300 4436820 4526310 4584714 5431572 5546025 6789465 6877071 7394700 7543850 7641190 9052620 9169428 11092050 11315775 11461785 13578930 13754142 15087700 15282380 19102975 22184100 22631550 22923570 23687689 27157860 27508284 33947325 34385355 38205950 45263100 45847140 47375378 57308925 67894650 68770710 71063067 76411900 94750756 114617850 118438445 135789300 137541420 142126134 171926775 213189201 229235700 236876890 284252268 343853550 355315335 426378402 473753780 592192225 687707100 710630670 852756804 1065946005 1184384450 1421261340 1776576675 2131892010 2368768900 3553153350 4263784020 5329730025 7106306700 10659460050 21318920100
• Sum of all divisors σ(n): 69490683171
• Sum of proper divisors (its aliquot sum) s(n): 48171763071
• 21318920100 is an abundant number, because the sum of its proper divisors (48171763071) is greater than itself. Its abundance is 26852842971

Bases of 21318920100

• Binary: 10011110110101101001110011110100100₂
• Hexadecimal: 0x4F6B4E7A4
• Base-36: 9SKQG10

Squares and roots of 21318920100

• 21318920100 squared (21318920100²) is 454496354230184010000
• 21318920100 cubed (21318920100³) is 9689371461574589917487601000000
• 21318920100 is a perfect square number. Its square root is 146010
• The cube root of 21318920100 is 2772.8203580713

Scales and comparisons

• 21,318,920,100 seconds is equal to 677 years, 45 weeks, 3 days, 18 hours, 15 minutes.
• To count from 1 to 21,318,920,100 would take you about one thousand, three hundred fifty-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 21318920100 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318920100

• 21318920100 backwards is 00102981312
• The number of decimal digits it has is: 11
• The sum of 21318920100's digits is 27
• More coming soon!