21370972
21,370,972 is an even composite number composed of five prime numbers multiplied together.
21370972 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21370972:
22 × 7 × 172 × 19 × 139
(2 × 2 × 7 × 17 × 17 × 19 × 139)See below for interesting mathematical facts about the number 21370972 from the Numbermatics database.
Names of 21370972
- Cardinal: 21370972 can be written as Twenty-one million, three hundred seventy thousand, nine hundred seventy-two.
Scientific notation
- Scientific notation: 2.1370972 × 107
Factors of 21370972
Divisors of 21370972
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 7 14 17 19 28 34 38 68 76 119 133 139 238 266 278 289 323 476 532 556 578 646 973 1156 1292 1946 2023 2261 2363 2641 3892 4046 4522 4726 5282 5491 8092 9044 9452 10564 10982 16541 18487 21964 33082 36974 38437 40171 44897 66164 73948 76874 80342 89794 153748 160684 179588 281197 314279 562394 628558 763249 1124788 1257116 1526498 3052996 5342743 10685486 21370972
- Sum of all divisors σ(n): 48137600
- Sum of proper divisors (its aliquot sum) s(n): 26766628
- 21370972 is an abundant number, because the sum of its proper divisors (26766628) is greater than itself. Its abundance is 5395656
Bases of 21370972
- Binary: 10100011000011000010111002
- Hexadecimal: 0x146185C
- Base-36: CQ1Y4
Squares and roots of 21370972
- 21370972 squared (213709722) is 456718444224784
- 21370972 cubed (213709723) is 9760517083411420570048
-
The
square root of 21370972 is 4622.8748631127 -
The
cube root of 21370972 is 277.5075213717
Scales and comparisons
How big is 21370972?- 21,370,972 seconds is equal to 35 weeks, 2 days, 8 hours, 22 minutes, 52 seconds.
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To count from 1 to 21,370,972 would take you about thirty-four minutes!
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 21370972 cubic inches would be around 23.1 feet tall.
Recreational maths with 21370972
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The information we have on file for 21370972 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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