30879420
30,879,420 is an even composite number composed of seven prime numbers multiplied together.
30879420 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 30879420:
22 × 3 × 5 × 11 × 13 × 59 × 61
(2 × 2 × 3 × 5 × 11 × 13 × 59 × 61)See below for interesting mathematical facts about the number 30879420 from the Numbermatics database.
Names of 30879420
- Cardinal: 30879420 can be written as Thirty million, eight hundred seventy-nine thousand, four hundred twenty.
Scientific notation
- Scientific notation: 3.087942 × 107
Factors of 30879420
Divisors of 30879420
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 10 11 12 13 15 20 22 26 30 33 39 44 52 55 59 60 61 65 66 78 110 118 122 130 132 143 156 165 177 183 195 220 236 244 260 286 295 305 330 354 366 390 429 572 590 610 649 660 671 708 715 732 767 780 793 858 885 915 1180 1220 1298 1342 1430 1534 1586 1716 1770 1830 1947 2013 2145 2301 2379 2596 2684 2860 3068 3172 3245 3355 3540 3599 3660 3835 3894 3965 4026 4290 4602 4758 6490 6710 7198 7670 7788 7930 8052 8437 8580 8723 9204 9516 9735 10065 10797 11505 11895 12980 13420 14396 15340 15860 16874 17446 17995 19470 20130 21594 23010 23790 25311 26169 33748 34892 35990 38940 39589 40260 42185 43188 43615 46020 46787 47580 50622 52338 53985 71980 79178 84370 87230 93574 101244 104676 107970 118767 126555 130845 140361 158356 168740 174460 187148 197945 215940 233935 237534 253110 261690 280722 395890 467870 475068 506220 514657 523380 561444 593835 701805 791780 935740 1029314 1187670 1403610 1543971 2058628 2375340 2573285 2807220 3087942 5146570 6175884 7719855 10293140 15439710 30879420
- Sum of all divisors σ(n): 104993280
- Sum of proper divisors (its aliquot sum) s(n): 74113860
- 30879420 is an abundant number, because the sum of its proper divisors (74113860) is greater than itself. Its abundance is 43234440
Bases of 30879420
- Binary: 11101011100101110101111002
- Hexadecimal: 0x1D72EBC
- Base-36: IDUPO
Squares and roots of 30879420
- 30879420 squared (308794202) is 953538579536400
- 30879420 cubed (308794203) is 29444718283707900888000
-
The
square root of 30879420 is 5556.9254088929 -
The
cube root of 30879420 is 313.7302374287
Scales and comparisons
How big is 30879420?- 30,879,420 seconds is equal to 51 weeks, 9 hours, 37 minutes.
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To count from 1 to 30,879,420 would take you about twenty-four 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 30879420 cubic inches would be around 26.1 feet tall.
Recreational maths with 30879420
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