21680926400

Names of 21680926400

• Cardinal: 21680926400 can be written as Twenty-one billion, six hundred eighty million, nine hundred twenty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.16809264 × 10¹⁰

Factors of 21680926400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5156

Divisors of 21680926400

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 140 160 175 200 224 280 320 350 400 409 448 560 700 800 818 1120 1400 1600 1636 2045 2240 2800 2863 3272 4090 4733 5600 5726 6544 8180 9466 10225 11200 11452 13088 14315 16360 18932 20450 22904 23665 26176 28630 32720 33131 37864 40900 45808 47330 57260 65440 66262 71575 75728 81800 91616 94660 114520 118325 130880 132524 143150 151456 163600 165655 183232 189320 229040 236650 265048 286300 302912 327200 331310 378640 458080 473300 530096 572600 654400 662620 757280 828275 916160 946600 1060192 1145200 1325240 1514560 1656550 1893200 1935797 2120384 2290400 2650480 3313100 3786400 3871594 4580800 5300960 6626200 7572800 7743188 9678985 10601920 13252400 13550579 15486376 19357970 26504800 27101158 30972752 38715940 48394925 53009600 54202316 61945504 67752895 77431880 96789850 108404632 123891008 135505790 154863760 193579700 216809264 271011580 309727520 338764475 387159400 433618528 542023160 619455040 677528950 774318800 867237056 1084046320 1355057900 1548637600 2168092640 2710115800 3097275200 4336185280 5420231600 10840463200 21680926400
• Sum of all divisors σ(n): 61131846240
• Sum of proper divisors (its aliquot sum) s(n): 39450919840
• 21680926400 is an abundant number, because the sum of its proper divisors (39450919840) is greater than itself. Its abundance is 17769993440

Bases of 21680926400

• Binary: 10100001100010010001010111011000000₂
• Hexadecimal: 0x50C48AEC0
• Base-36: 9YK9HVK

Squares and roots of 21680926400

• 21680926400 squared (21680926400²) is 470062569562216960000
• 21680926400 cubed (21680926400³) is 10191391974073306130591744000000
• The square root of 21680926400 is 147244.4443773687
• The cube root of 21680926400 is 2788.4269940693

Scales and comparisons

• 21,680,926,400 seconds is equal to 689 years, 20 weeks, 15 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,680,926,400 would take you about one thousand, three hundred seventy-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 21680926400 cubic inches would be around 232.4 feet tall.

Recreational maths with 21680926400

• 21680926400 backwards is 00462908612
• The number of decimal digits it has is: 11
• The sum of 21680926400's digits is 38
• More coming soon!