21126144
21,126,144 is an even composite number composed of four prime numbers multiplied together.
21126144 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred thirty-two divisors.
Prime factorization of 21126144:
210 × 3 × 13 × 232
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 23 × 23)See below for interesting mathematical facts about the number 21126144 from the Numbermatics database.
Names of 21126144
- Cardinal: 21126144 can be written as Twenty-one million, one hundred twenty-six thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1126144 × 107
Factors of 21126144
Divisors of 21126144
- Number of divisors d(n): 132
-
Complete list of divisors:
1 2 3 4 6 8 12 13 16 23 24 26 32 39 46 48 52 64 69 78 92 96 104 128 138 156 184 192 208 256 276 299 312 368 384 416 512 529 552 598 624 736 768 832 897 1024 1058 1104 1196 1248 1472 1536 1587 1664 1794 2116 2208 2392 2496 2944 3072 3174 3328 3588 4232 4416 4784 4992 5888 6348 6656 6877 7176 8464 8832 9568 9984 11776 12696 13312 13754 14352 16928 17664 19136 19968 20631 23552 25392 27508 28704 33856 35328 38272 39936 41262 50784 55016 57408 67712 70656 76544 82524 101568 110032 114816 135424 153088 165048 203136 220064 229632 270848 306176 330096 406272 440128 459264 541696 660192 812544 880256 918528 1320384 1625088 1760512 2640768 3521024 5281536 7042048 10563072 21126144
- Sum of all divisors σ(n): 63391496
- Sum of proper divisors (its aliquot sum) s(n): 42265352
- 21126144 is an abundant number, because the sum of its proper divisors (42265352) is greater than itself. Its abundance is 21139208
Bases of 21126144
- Binary: 10100001001011100000000002
- Hexadecimal: 0x1425C00
- Base-36: CKT1C
Squares and roots of 21126144
- 21126144 squared (211261442) is 446313960308736
- 21126144 cubed (211261443) is 9428892994692641193984
-
The
square root of 21126144 is 4596.3185268213 -
The
cube root of 21126144 is 276.4437306673
Scales and comparisons
How big is 21126144?- 21,126,144 seconds is equal to 34 weeks, 6 days, 12 hours, 22 minutes, 24 seconds.
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To count from 1 to 21,126,144 would take you about two 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 21126144 cubic inches would be around 23 feet tall.
Recreational maths with 21126144
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