21309210
21,309,210 is an even composite number composed of five prime numbers multiplied together.
21309210 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21309210:
2 × 33 × 5 × 132 × 467
(2 × 3 × 3 × 3 × 5 × 13 × 13 × 467)See below for interesting mathematical facts about the number 21309210 from the Numbermatics database.
Names of 21309210
- Cardinal: 21309210 can be written as Twenty-one million, three hundred nine thousand, two hundred ten.
Scientific notation
- Scientific notation: 2.130921 × 107
Factors of 21309210
Divisors of 21309210
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 169 195 234 270 338 351 390 467 507 585 702 845 934 1014 1170 1401 1521 1690 1755 2335 2535 2802 3042 3510 4203 4563 4670 5070 6071 7005 7605 8406 9126 12142 12609 14010 15210 18213 21015 22815 25218 30355 36426 42030 45630 54639 60710 63045 78923 91065 109278 126090 157846 163917 182130 236769 273195 327834 394615 473538 546390 710307 789230 819585 1183845 1420614 1639170 2130921 2367690 3551535 4261842 7103070 10654605 21309210
- Sum of all divisors σ(n): 61663680
- Sum of proper divisors (its aliquot sum) s(n): 40354470
- 21309210 is an abundant number, because the sum of its proper divisors (40354470) is greater than itself. Its abundance is 19045260
Bases of 21309210
- Binary: 10100010100100111000110102
- Hexadecimal: 0x145271A
- Base-36: COQAI
Squares and roots of 21309210
- 21309210 squared (213092102) is 454082430824100
- 21309210 cubed (213092103) is 9676137875741219961000
-
The
square root of 21309210 is 4616.1899874247 -
The
cube root of 21309210 is 277.2399316549
Scales and comparisons
How big is 21309210?- 21,309,210 seconds is equal to 35 weeks, 1 day, 15 hours, 13 minutes, 30 seconds.
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To count from 1 to 21,309,210 would take you about five 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 21309210 cubic inches would be around 23.1 feet tall.
Recreational maths with 21309210
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The information we have on file for 21309210 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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