30398720
30,398,720 is an even composite number composed of five prime numbers multiplied together.
30398720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 30398720:
28 × 5 × 11 × 17 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 11 × 17 × 127)See below for interesting mathematical facts about the number 30398720 from the Numbermatics database.
Names of 30398720
- Cardinal: 30398720 can be written as Thirty million, three hundred ninety-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 3.039872 × 107
Factors of 30398720
Divisors of 30398720
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 11 16 17 20 22 32 34 40 44 55 64 68 80 85 88 110 127 128 136 160 170 176 187 220 254 256 272 320 340 352 374 440 508 544 635 640 680 704 748 880 935 1016 1088 1270 1280 1360 1397 1408 1496 1760 1870 2032 2159 2176 2540 2720 2794 2816 2992 3520 3740 4064 4318 4352 5080 5440 5588 5984 6985 7040 7480 8128 8636 10160 10795 10880 11176 11968 13970 14080 14960 16256 17272 20320 21590 21760 22352 23749 23936 27940 29920 32512 34544 40640 43180 44704 47498 47872 55880 59840 69088 81280 86360 89408 94996 111760 118745 119680 138176 162560 172720 178816 189992 223520 237490 239360 276352 345440 357632 379984 447040 474980 552704 690880 759968 894080 949960 1381760 1519936 1788160 1899920 2763520 3039872 3799840 6079744 7599680 15199360 30398720
- Sum of all divisors σ(n): 84768768
- Sum of proper divisors (its aliquot sum) s(n): 54370048
- 30398720 is an abundant number, because the sum of its proper divisors (54370048) is greater than itself. Its abundance is 23971328
Bases of 30398720
- Binary: 11100111111011001000000002
- Hexadecimal: 0x1CFD900
- Base-36: I3JSW
Squares and roots of 30398720
- 30398720 squared (303987202) is 924082177638400
- 30398720 cubed (303987203) is 28090915375019982848000
-
The
square root of 30398720 is 5513.5034234141 -
The
cube root of 30398720 is 312.0937697551
Scales and comparisons
How big is 30398720?- 30,398,720 seconds is equal to 50 weeks, 1 day, 20 hours, 5 minutes, 20 seconds.
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To count from 1 to 30,398,720 would take you about twenty-three 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 30398720 cubic inches would be around 26 feet tall.
Recreational maths with 30398720
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