21221389308
21,221,389,308 is an even composite number composed of six prime numbers multiplied together.
21221389308 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21221389308:
22 × 3 × 7 × 61 × 1327 × 3121
(2 × 2 × 3 × 7 × 61 × 1327 × 3121)See below for interesting mathematical facts about the number 21221389308 from the Numbermatics database.
Names of 21221389308
- Cardinal: 21221389308 can be written as Twenty-one billion, two hundred twenty-one million, three hundred eighty-nine thousand, three hundred eight.
Scientific notation
- Scientific notation: 2.1221389308 × 1010
Factors of 21221389308
Divisors of 21221389308
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 7 12 14 21 28 42 61 84 122 183 244 366 427 732 854 1281 1327 1708 2562 2654 3121 3981 5124 5308 6242 7962 9289 9363 12484 15924 18578 18726 21847 27867 37156 37452 43694 55734 65541 80947 87388 111468 131082 161894 190381 242841 262164 323788 380762 485682 566629 571143 761524 971364 1133258 1142286 1332667 1699887 2266516 2284572 2665334 3399774 3998001 4141567 5330668 6799548 7996002 8283134 12424701 15992004 16566268 24849402 28990969 49698804 57981938 86972907 115963876 173945814 252635587 347891628 505271174 757906761 1010542348 1515813522 1768449109 3031627044 3536898218 5305347327 7073796436 10610694654 21221389308
- Sum of all divisors σ(n): 57579870208
- Sum of proper divisors (its aliquot sum) s(n): 36358480900
- 21221389308 is an abundant number, because the sum of its proper divisors (36358480900) is greater than itself. Its abundance is 15137091592
Bases of 21221389308
- Binary: 100111100001110010010110011111111002
- Hexadecimal: 0x4F0E4B3FC
- Base-36: 9QYO0SC
Squares and roots of 21221389308
- 21221389308 squared (212213893082) is 450347364161696718864
- 21221389308 cubed (212213893083) is 9556996738707013132839171506112
-
The
square root of 21221389308 is 145675.6304534155 -
The
cube root of 21221389308 is 2768.5854841377
Scales and comparisons
How big is 21221389308?- 21,221,389,308 seconds is equal to 674 years, 40 weeks, 1 day, 22 hours, 21 minutes, 48 seconds.
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To count from 1 to 21,221,389,308 would take you about one thousand, three hundred forty-nine 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 21221389308 cubic inches would be around 230.7 feet tall.
Recreational maths with 21221389308
- 21221389308 backwards is 80398312212
- The number of decimal digits it has is: 11
- The sum of 21221389308's digits is 39
- More coming soon!
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