21394692
21,394,692 is an even composite number composed of five prime numbers multiplied together.
21394692 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 21394692:
22 × 36 × 11 × 23 × 29
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 11 × 23 × 29)See below for interesting mathematical facts about the number 21394692 from the Numbermatics database.
Names of 21394692
- Cardinal: 21394692 can be written as Twenty-one million, three hundred ninety-four thousand, six hundred ninety-two.
Scientific notation
- Scientific notation: 2.1394692 × 107
Factors of 21394692
Divisors of 21394692
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 6 9 11 12 18 22 23 27 29 33 36 44 46 54 58 66 69 81 87 92 99 108 116 132 138 162 174 198 207 243 253 261 276 297 319 324 348 396 414 486 506 522 594 621 638 667 729 759 783 828 891 957 972 1012 1044 1188 1242 1276 1334 1458 1518 1566 1782 1863 1914 2001 2277 2349 2484 2668 2673 2871 2916 3036 3132 3564 3726 3828 4002 4554 4698 5346 5589 5742 6003 6831 7047 7337 7452 8004 8019 8613 9108 9396 10692 11178 11484 12006 13662 14094 14674 16038 16767 17226 18009 20493 21141 22011 22356 24012 25839 27324 28188 29348 32076 33534 34452 36018 40986 42282 44022 51678 54027 61479 66033 67068 72036 77517 81972 84564 88044 103356 108054 122958 132066 155034 162081 184437 198099 216108 232551 245916 264132 310068 324162 368874 396198 465102 486243 594297 648324 737748 792396 930204 972486 1188594 1782891 1944972 2377188 3565782 5348673 7131564 10697346 21394692
- Sum of all divisors σ(n): 66104640
- Sum of proper divisors (its aliquot sum) s(n): 44709948
- 21394692 is an abundant number, because the sum of its proper divisors (44709948) is greater than itself. Its abundance is 23315256
Bases of 21394692
- Binary: 10100011001110101000001002
- Hexadecimal: 0x1467504
- Base-36: CQK90
Squares and roots of 21394692
- 21394692 squared (213946922) is 457732845774864
- 21394692 cubed (213946923) is 9793053253636716621888
-
The
square root of 21394692 is 4625.4396547789 -
The
cube root of 21394692 is 277.6101534931
Scales and comparisons
How big is 21394692?- 21,394,692 seconds is equal to 35 weeks, 2 days, 14 hours, 58 minutes, 12 seconds.
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To count from 1 to 21,394,692 would take you about ten hours!
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 21394692 cubic inches would be around 23.1 feet tall.
Recreational maths with 21394692
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