21313908
21,313,908 is an even composite number composed of five prime numbers multiplied together.
21313908 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21313908:
22 × 33 × 7 × 112 × 233
(2 × 2 × 3 × 3 × 3 × 7 × 11 × 11 × 233)See below for interesting mathematical facts about the number 21313908 from the Numbermatics database.
Names of 21313908
- Cardinal: 21313908 can be written as Twenty-one million, three hundred thirteen thousand, nine hundred eight.
Scientific notation
- Scientific notation: 2.1313908 × 107
Factors of 21313908
Divisors of 21313908
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 54 63 66 77 84 99 108 121 126 132 154 189 198 231 233 242 252 297 308 363 378 396 462 466 484 594 693 699 726 756 847 924 932 1089 1188 1386 1398 1452 1631 1694 2079 2097 2178 2541 2563 2772 2796 3262 3267 3388 4158 4194 4356 4893 5082 5126 6291 6524 6534 7623 7689 8316 8388 9786 10164 10252 12582 13068 14679 15246 15378 17941 19572 22869 23067 25164 28193 29358 30492 30756 35882 44037 45738 46134 53823 56386 58716 69201 71764 84579 88074 91476 92268 107646 112772 138402 161469 169158 176148 197351 215292 253737 276804 322938 338316 394702 484407 507474 592053 645876 761211 789404 968814 1014948 1184106 1522422 1776159 1937628 2368212 3044844 3552318 5328477 7104636 10656954 21313908
- Sum of all divisors σ(n): 69713280
- Sum of proper divisors (its aliquot sum) s(n): 48399372
- 21313908 is an abundant number, because the sum of its proper divisors (48399372) is greater than itself. Its abundance is 27085464
Bases of 21313908
- Binary: 10100010100111001011101002
- Hexadecimal: 0x1453974
- Base-36: COTX0
Squares and roots of 21313908
- 21313908 squared (213139082) is 454282674232464
- 21313908 cubed (213139083) is 9682539124584708309312
-
The
square root of 21313908 is 4616.6988205859 -
The
cube root of 21313908 is 277.2603043403
Scales and comparisons
How big is 21313908?- 21,313,908 seconds is equal to 35 weeks, 1 day, 16 hours, 31 minutes, 48 seconds.
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To count from 1 to 21,313,908 would take you about six days!
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 21313908 cubic inches would be around 23.1 feet tall.
Recreational maths with 21313908
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The information we have on file for 21313908 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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