28351440
28,351,440 is an even composite number composed of five prime numbers multiplied together.
28351440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 28351440:
24 × 32 × 5 × 132 × 233
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 13 × 233)See below for interesting mathematical facts about the number 28351440 from the Numbermatics database.
Names of 28351440
- Cardinal: 28351440 can be written as Twenty-eight million, three hundred fifty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.835144 × 107
Factors of 28351440
Divisors of 28351440
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 36 39 40 45 48 52 60 65 72 78 80 90 104 117 120 130 144 156 169 180 195 208 233 234 240 260 312 338 360 390 466 468 507 520 585 624 676 699 720 780 845 932 936 1014 1040 1165 1170 1352 1398 1521 1560 1690 1864 1872 2028 2097 2330 2340 2535 2704 2796 3029 3042 3120 3380 3495 3728 4056 4194 4660 4680 5070 5592 6058 6084 6760 6990 7605 8112 8388 9087 9320 9360 10140 10485 11184 12116 12168 13520 13980 15145 15210 16776 18174 18640 20280 20970 24232 24336 27261 27960 30290 30420 33552 36348 39377 40560 41940 45435 48464 54522 55920 60580 60840 72696 78754 83880 90870 109044 118131 121160 121680 136305 145392 157508 167760 181740 196885 218088 236262 242320 272610 315016 354393 363480 393770 436176 472524 545220 590655 630032 708786 726960 787540 945048 1090440 1181310 1417572 1575080 1771965 1890096 2180880 2362620 2835144 3150160 3543930 4725240 5670288 7087860 9450480 14175720 28351440
- Sum of all divisors σ(n): 103543596
- Sum of proper divisors (its aliquot sum) s(n): 75192156
- 28351440 is an abundant number, because the sum of its proper divisors (75192156) is greater than itself. Its abundance is 46840716
Bases of 28351440
- Binary: 11011000010011011110100002
- Hexadecimal: 0x1B09BD0
- Base-36: GVO40
Squares and roots of 28351440
- 28351440 squared (283514402) is 803804150073600
- 28351440 cubed (283514403) is 22789005132562665984000
-
The
square root of 28351440 is 5324.6070277533 -
The
cube root of 28351440 is 304.9240696051
Scales and comparisons
How big is 28351440?- 28,351,440 seconds is equal to 46 weeks, 6 days, 3 hours, 24 minutes.
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To count from 1 to 28,351,440 would take you about eighteen 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 28351440 cubic inches would be around 25.4 feet tall.
Recreational maths with 28351440
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