21432320
21,432,320 is an even composite number composed of five prime numbers multiplied together.
21432320 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21432320:
211 × 5 × 7 × 13 × 23
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 13 × 23)See below for interesting mathematical facts about the number 21432320 from the Numbermatics database.
Names of 21432320
- Cardinal: 21432320 can be written as Twenty-one million, four hundred thirty-two thousand, three hundred twenty.
Scientific notation
- Scientific notation: 2.143232 × 107
Factors of 21432320
Divisors of 21432320
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 5 7 8 10 13 14 16 20 23 26 28 32 35 40 46 52 56 64 65 70 80 91 92 104 112 115 128 130 140 160 161 182 184 208 224 230 256 260 280 299 320 322 364 368 416 448 455 460 512 520 560 598 640 644 728 736 805 832 896 910 920 1024 1040 1120 1196 1280 1288 1456 1472 1495 1610 1664 1792 1820 1840 2048 2080 2093 2240 2392 2560 2576 2912 2944 2990 3220 3328 3584 3640 3680 4160 4186 4480 4784 5120 5152 5824 5888 5980 6440 6656 7168 7280 7360 8320 8372 8960 9568 10240 10304 10465 11648 11776 11960 12880 13312 14336 14560 14720 16640 16744 17920 19136 20608 20930 23296 23552 23920 25760 26624 29120 29440 33280 33488 35840 38272 41216 41860 46592 47104 47840 51520 58240 58880 66560 66976 71680 76544 82432 83720 93184 95680 103040 116480 117760 133120 133952 153088 164864 167440 186368 191360 206080 232960 235520 267904 306176 329728 334880 382720 412160 465920 535808 612352 669760 765440 824320 931840 1071616 1339520 1530880 1648640 2143232 2679040 3061760 4286464 5358080 10716160 21432320
- Sum of all divisors σ(n): 66044160
- Sum of proper divisors (its aliquot sum) s(n): 44611840
- 21432320 is an abundant number, because the sum of its proper divisors (44611840) is greater than itself. Its abundance is 23179520
Bases of 21432320
- Binary: 10100011100001000000000002
- Hexadecimal: 0x1470800
- Base-36: CRDA8
Squares and roots of 21432320
- 21432320 squared (214323202) is 459344340582400
- 21432320 cubed (214323203) is 9844814897550983168000
-
The
square root of 21432320 is 4629.5053731473 -
The
cube root of 21432320 is 277.7728074963
Scales and comparisons
How big is 21432320?- 21,432,320 seconds is equal to 35 weeks, 3 days, 1 hour, 25 minutes, 20 seconds.
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To count from 1 to 21,432,320 would take you about two 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 21432320 cubic inches would be around 23.1 feet tall.
Recreational maths with 21432320
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