28994490
28,994,490 is an even composite number composed of six prime numbers multiplied together.
28994490 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 28994490:
2 × 33 × 5 × 7 × 232 × 29
(2 × 3 × 3 × 3 × 5 × 7 × 23 × 23 × 29)See below for interesting mathematical facts about the number 28994490 from the Numbermatics database.
Names of 28994490
- Cardinal: 28994490 can be written as Twenty-eight million, nine hundred ninety-four thousand, four hundred ninety.
Scientific notation
- Scientific notation: 2.899449 × 107
Factors of 28994490
Divisors of 28994490
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 23 27 29 30 35 42 45 46 54 58 63 69 70 87 90 105 115 126 135 138 145 161 174 189 203 207 210 230 261 270 290 315 322 345 378 406 414 435 483 522 529 609 621 630 667 690 783 805 870 945 966 1015 1035 1058 1218 1242 1305 1334 1449 1566 1587 1610 1827 1890 2001 2030 2070 2415 2610 2645 2898 3045 3105 3174 3335 3654 3703 3915 4002 4347 4669 4761 4830 5290 5481 6003 6090 6210 6670 7245 7406 7830 7935 8694 9135 9338 9522 10005 10962 11109 12006 14007 14283 14490 15341 15870 18009 18270 18515 20010 21735 22218 23345 23805 27405 28014 28566 30015 30682 33327 36018 37030 42021 43470 46023 46690 47610 54810 55545 60030 66654 70035 71415 76705 84042 90045 92046 99981 107387 111090 126063 138069 140070 142830 153410 166635 180090 199962 210105 214774 230115 252126 276138 322161 333270 414207 420210 460230 499905 536935 630315 644322 690345 828414 966483 999810 1073870 1260630 1380690 1610805 1932966 2071035 2899449 3221610 4142070 4832415 5798898 9664830 14497245 28994490
- Sum of all divisors σ(n): 95558400
- Sum of proper divisors (its aliquot sum) s(n): 66563910
- 28994490 is an abundant number, because the sum of its proper divisors (66563910) is greater than itself. Its abundance is 37569420
Bases of 28994490
- Binary: 11011101001101011101110102
- Hexadecimal: 0x1BA6BBA
- Base-36: H9GAI
Squares and roots of 28994490
- 28994490 squared (289944902) is 840680450360100
- 28994490 cubed (289944903) is 24375100911161415849000
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The
square root of 28994490 is 5384.6531921749 -
The
cube root of 28994490 is 307.2122233295
Scales and comparisons
How big is 28994490?- 28,994,490 seconds is equal to 47 weeks, 6 days, 14 hours, 1 minute, 30 seconds.
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To count from 1 to 28,994,490 would take you about nineteen weeks!
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 28994490 cubic inches would be around 25.6 feet tall.
Recreational maths with 28994490
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