21629916
21,629,916 is an even composite number composed of five prime numbers multiplied together.
21629916 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 21629916:
22 × 35 × 7 × 11 × 172
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 7 × 11 × 17 × 17)See below for interesting mathematical facts about the number 21629916 from the Numbermatics database.
Names of 21629916
- Cardinal: 21629916 can be written as Twenty-one million, six hundred twenty-nine thousand, nine hundred sixteen.
Scientific notation
- Scientific notation: 2.1629916 × 107
Factors of 21629916
Divisors of 21629916
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 6 7 9 11 12 14 17 18 21 22 27 28 33 34 36 42 44 51 54 63 66 68 77 81 84 99 102 108 119 126 132 153 154 162 187 189 198 204 231 238 243 252 289 297 306 308 324 357 374 378 396 459 462 476 486 561 567 578 594 612 693 714 748 756 867 891 918 924 972 1071 1122 1134 1156 1188 1309 1377 1386 1428 1683 1701 1734 1782 1836 2023 2079 2142 2244 2268 2601 2618 2673 2754 2772 3179 3213 3366 3402 3468 3564 3927 4046 4131 4158 4284 5049 5202 5236 5346 5508 6069 6237 6358 6426 6732 6804 7803 7854 8092 8262 8316 9537 9639 10098 10404 10692 11781 12138 12474 12716 12852 15147 15606 15708 16524 18207 18711 19074 19278 20196 22253 23409 23562 24276 24948 28611 28917 30294 31212 35343 36414 37422 38148 38556 44506 45441 46818 47124 54621 57222 57834 60588 66759 70227 70686 72828 74844 85833 89012 90882 93636 106029 109242 114444 115668 133518 140454 141372 163863 171666 181764 200277 212058 218484 257499 267036 280908 318087 327726 343332 400554 424116 491589 514998 600831 636174 655452 772497 801108 983178 1029996 1201662 1272348 1544994 1802493 1966356 2403324 3089988 3604986 5407479 7209972 10814958 21629916
- Sum of all divisors σ(n): 75094656
- Sum of proper divisors (its aliquot sum) s(n): 53464740
- 21629916 is an abundant number, because the sum of its proper divisors (53464740) is greater than itself. Its abundance is 31834824
Bases of 21629916
- Binary: 10100101000001011110111002
- Hexadecimal: 0x14A0BDC
- Base-36: CVLR0
Squares and roots of 21629916
- 21629916 squared (216299162) is 467853266167056
- 21629916 cubed (216299163) is 10119626847519063247296
-
The
square root of 21629916 is 4650.7973509927 -
The
cube root of 21629916 is 278.6238427157
Scales and comparisons
How big is 21629916?- 21,629,916 seconds is equal to 35 weeks, 5 days, 8 hours, 18 minutes, 36 seconds.
-
To count from 1 to 21,629,916 would take you about four 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 21629916 cubic inches would be around 23.2 feet tall.
Recreational maths with 21629916
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