21311381664
21,311,381,664 is an even composite number composed of four prime numbers multiplied together.
21311381664 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21311381664:
25 × 33 × 3613 × 6827
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3613 × 6827)See below for interesting mathematical facts about the number 21311381664 from the Numbermatics database.
Names of 21311381664
- Cardinal: 21311381664 can be written as Twenty-one billion, three hundred eleven million, three hundred eighty-one thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 2.1311381664 × 1010
Factors of 21311381664
Divisors of 21311381664
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 3613 6827 7226 10839 13654 14452 20481 21678 27308 28904 32517 40962 43356 54616 57808 61443 65034 81924 86712 97551 109232 115616 122886 130068 163848 173424 184329 195102 218464 245772 260136 327696 346848 368658 390204 491544 520272 655392 737316 780408 983088 1040544 1474632 1560816 1966176 2949264 3121632 5898528 24665951 49331902 73997853 98663804 147995706 197327608 221993559 295991412 394655216 443987118 591982824 665980677 789310432 887974236 1183965648 1331961354 1775948472 2367931296 2663922708 3551896944 5327845416 7103793888 10655690832 21311381664
- Sum of all divisors σ(n): 62184507840
- Sum of proper divisors (its aliquot sum) s(n): 40873126176
- 21311381664 is an abundant number, because the sum of its proper divisors (40873126176) is greater than itself. Its abundance is 19561744512
Bases of 21311381664
- Binary: 100111101100100000111100000101000002
- Hexadecimal: 0x4F641E0A0
- Base-36: 9SG8VC0
Squares and roots of 21311381664
- 21311381664 squared (213113816642) is 454174988428675408896
- 21311381664 cubed (213113816643) is 9679096520646285280953916882944
-
The
square root of 21311381664 is 145984.1829240415 -
The
cube root of 21311381664 is 2772.4934935937
Scales and comparisons
How big is 21311381664?- 21,311,381,664 seconds is equal to 677 years, 33 weeks, 12 hours, 14 minutes, 24 seconds.
-
To count from 1 to 21,311,381,664 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 21311381664 cubic inches would be around 231 feet tall.
Recreational maths with 21311381664
- 21311381664 backwards is 46618311312
- 21311381664 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21311381664's digits is 36
- More coming soon!
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The information we have on file for 21311381664 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!
Keywords: Divisors of 21311381664, math, Factors of 21311381664, curriculum, school, college, exams, university, Prime factorization of 21311381664, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, three hundred eleven million, three hundred eighty-one thousand, six hundred sixty-four.