51309940
51,309,940 is an even composite number composed of five prime numbers multiplied together.
51309940 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 51309940:
22 × 5 × 11 × 592 × 67
(2 × 2 × 5 × 11 × 59 × 59 × 67)See below for interesting mathematical facts about the number 51309940 from the Numbermatics database.
Names of 51309940
- Cardinal: 51309940 can be written as Fifty-one million, three hundred nine thousand, nine hundred forty.
Scientific notation
- Scientific notation: 5.130994 × 107
Factors of 51309940
Divisors of 51309940
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 10 11 20 22 44 55 59 67 110 118 134 220 236 268 295 335 590 649 670 737 1180 1298 1340 1474 2596 2948 3245 3481 3685 3953 6490 6962 7370 7906 12980 13924 14740 15812 17405 19765 34810 38291 39530 43483 69620 76582 79060 86966 153164 173932 191455 217415 233227 382910 434830 466454 765820 869660 932908 1166135 2332270 2565497 4664540 5130994 10261988 12827485 25654970 51309940
- Sum of all divisors σ(n): 121357152
- Sum of proper divisors (its aliquot sum) s(n): 70047212
- 51309940 is an abundant number, because the sum of its proper divisors (70047212) is greater than itself. Its abundance is 18737272
Bases of 51309940
- Binary: 110000111011101101011101002
- Hexadecimal: 0x30EED74
- Base-36: UJR04
Squares and roots of 51309940
- 51309940 squared (513099402) is 2632709942803600
- 51309940 cubed (513099403) is 135084189202656147784000
-
The
square root of 51309940 is 7163.0956994863 -
The
cube root of 51309940 is 371.5926959933
Scales and comparisons
How big is 51309940?- 51,309,940 seconds is equal to 1 year, 32 weeks, 5 days, 20 hours, 45 minutes, 40 seconds.
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To count from 1 to 51,309,940 would take you about two years!
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 51309940 cubic inches would be around 31 feet tall.
Recreational maths with 51309940
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