30489840
30,489,840 is an even composite number composed of six prime numbers multiplied together.
30489840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 30489840:
24 × 32 × 5 × 17 × 47 × 53
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 17 × 47 × 53)See below for interesting mathematical facts about the number 30489840 from the Numbermatics database.
Names of 30489840
- Cardinal: 30489840 can be written as Thirty million, four hundred eighty-nine thousand, eight hundred forty.
Scientific notation
- Scientific notation: 3.048984 × 107
Factors of 30489840
Divisors of 30489840
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 34 36 40 45 47 48 51 53 60 68 72 80 85 90 94 102 106 120 136 141 144 153 159 170 180 188 204 212 235 240 255 265 272 282 306 318 340 360 376 408 423 424 470 477 510 530 564 612 636 680 705 720 752 765 795 799 816 846 848 901 940 954 1020 1060 1128 1224 1272 1360 1410 1530 1590 1598 1692 1802 1880 1908 2040 2115 2120 2256 2385 2397 2448 2491 2544 2703 2820 3060 3180 3196 3384 3604 3760 3816 3995 4080 4230 4240 4505 4770 4794 4982 5406 5640 6120 6360 6392 6768 7191 7208 7473 7632 7990 8109 8460 9010 9540 9588 9964 10812 11280 11985 12240 12455 12720 12784 13515 14382 14416 14946 15980 16218 16920 18020 19080 19176 19928 21624 22419 23970 24910 27030 28764 29892 31960 32436 33840 35955 36040 37365 38160 38352 39856 40545 42347 43248 44838 47940 49820 54060 57528 59784 63920 64872 71910 72080 74730 81090 84694 89676 95880 99640 108120 112095 115056 119568 127041 129744 143820 149460 162180 169388 179352 191760 199280 211735 216240 224190 254082 287640 298920 324360 338776 358704 381123 423470 448380 508164 575280 597840 635205 648720 677552 762246 846940 896760 1016328 1270410 1524492 1693880 1793520 1905615 2032656 2540820 3048984 3387760 3811230 5081640 6097968 7622460 10163280 15244920 30489840
- Sum of all divisors σ(n): 112814208
- Sum of proper divisors (its aliquot sum) s(n): 82324368
- 30489840 is an abundant number, because the sum of its proper divisors (82324368) is greater than itself. Its abundance is 51834528
Bases of 30489840
- Binary: 11101000100111100111100002
- Hexadecimal: 0x1D13CF0
- Base-36: I5I40
Squares and roots of 30489840
- 30489840 squared (304898402) is 929630343225600
- 30489840 cubed (304898403) is 28344280424093627904000
-
The
square root of 30489840 is 5521.7605887977 -
The
cube root of 30489840 is 312.4052918335
Scales and comparisons
How big is 30489840?- 30,489,840 seconds is equal to 50 weeks, 2 days, 21 hours, 24 minutes.
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To count from 1 to 30,489,840 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 30489840 cubic inches would be around 26 feet tall.
Recreational maths with 30489840
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