28996380
28,996,380 is an even composite number composed of five prime numbers multiplied together.
28996380 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 28996380:
22 × 34 × 5 × 7 × 2557
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 2557)See below for interesting mathematical facts about the number 28996380 from the Numbermatics database.
Names of 28996380
- Cardinal: 28996380 can be written as Twenty-eight million, nine hundred ninety-six thousand, three hundred eighty.
Scientific notation
- Scientific notation: 2.899638 × 107
Factors of 28996380
Divisors of 28996380
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 81 84 90 105 108 126 135 140 162 180 189 210 252 270 315 324 378 405 420 540 567 630 756 810 945 1134 1260 1620 1890 2268 2557 2835 3780 5114 5670 7671 10228 11340 12785 15342 17899 23013 25570 30684 35798 38355 46026 51140 53697 69039 71596 76710 89495 92052 107394 115065 138078 153420 161091 178990 207117 214788 230130 268485 276156 322182 345195 357980 414234 460260 483273 536970 644364 690390 805455 828468 966546 1035585 1073940 1380780 1449819 1610910 1933092 2071170 2416365 2899638 3221820 4142340 4832730 5799276 7249095 9665460 14498190 28996380
- Sum of all divisors σ(n): 103998048
- Sum of proper divisors (its aliquot sum) s(n): 75001668
- 28996380 is an abundant number, because the sum of its proper divisors (75001668) is greater than itself. Its abundance is 46005288
Bases of 28996380
- Binary: 11011101001110011000111002
- Hexadecimal: 0x1BA731C
- Base-36: H9HR0
Squares and roots of 28996380
- 28996380 squared (289963802) is 840790053104400
- 28996380 cubed (289963803) is 24379867880035362072000
-
The
square root of 28996380 is 5384.8286880829 -
The
cube root of 28996380 is 307.2188983735
Scales and comparisons
How big is 28996380?- 28,996,380 seconds is equal to 47 weeks, 6 days, 14 hours, 33 minutes.
-
To count from 1 to 28,996,380 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 28996380 cubic inches would be around 25.6 feet tall.
Recreational maths with 28996380
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