18985120
18,985,120 is an even composite number composed of six prime numbers multiplied together.
18985120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 18985120:
25 × 5 × 7 × 11 × 23 × 67
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 23 × 67)See below for interesting mathematical facts about the number 18985120 from the Numbermatics database.
Names of 18985120
- Cardinal: 18985120 can be written as Eighteen million, nine hundred eighty-five thousand, one hundred twenty.
Scientific notation
- Scientific notation: 1.898512 × 107
Factors of 18985120
Divisors of 18985120
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 23 28 32 35 40 44 46 55 56 67 70 77 80 88 92 110 112 115 134 140 154 160 161 176 184 220 224 230 253 268 280 308 322 335 352 368 385 440 460 469 506 536 560 616 644 670 736 737 770 805 880 920 938 1012 1072 1120 1232 1265 1288 1340 1474 1540 1541 1610 1760 1771 1840 1876 2024 2144 2345 2464 2530 2576 2680 2948 3080 3082 3220 3542 3680 3685 3752 4048 4690 5060 5152 5159 5360 5896 6160 6164 6440 7084 7370 7504 7705 8096 8855 9380 10120 10318 10720 10787 11792 12320 12328 12880 14168 14740 15008 15410 16951 17710 18760 20240 20636 21574 23584 24656 25760 25795 28336 29480 30820 33902 35420 37520 40480 41272 43148 49312 51590 53935 56672 58960 61640 67804 70840 75040 82544 84755 86296 103180 107870 117920 118657 123280 135608 141680 165088 169510 172592 206360 215740 237314 246560 271216 283360 339020 345184 412720 431480 474628 542432 593285 678040 825440 862960 949256 1186570 1356080 1725920 1898512 2373140 2712160 3797024 4746280 9492560 18985120
- Sum of all divisors σ(n): 59222016
- Sum of proper divisors (its aliquot sum) s(n): 40236896
- 18985120 is an abundant number, because the sum of its proper divisors (40236896) is greater than itself. Its abundance is 21251776
Bases of 18985120
- Binary: 10010000110110000101000002
- Hexadecimal: 0x121B0A0
- Base-36: BAX0G
Squares and roots of 18985120
- 18985120 squared (189851202) is 360434781414400
- 18985120 cubed (189851203) is 6842897577326153728000
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The
square root of 18985120 is 4357.1917561659 -
The
cube root of 18985120 is 266.7704873523
Scales and comparisons
How big is 18985120?- 18,985,120 seconds is equal to 31 weeks, 2 days, 17 hours, 38 minutes, 40 seconds.
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To count from 1 to 18,985,120 would take you about forty-seven 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 18985120 cubic inches would be around 22.2 feet tall.
Recreational maths with 18985120
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