142947990
142,947,990 is an even composite number composed of five prime numbers multiplied together.
142947990 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 142947990:
2 × 34 × 5 × 23 × 7673
(2 × 3 × 3 × 3 × 3 × 5 × 23 × 7673)See below for interesting mathematical facts about the number 142947990 from the Numbermatics database.
Names of 142947990
- Cardinal: 142947990 can be written as One hundred forty-two million, nine hundred forty-seven thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.4294799 × 108
Factors of 142947990
Divisors of 142947990
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 23 27 30 45 46 54 69 81 90 115 135 138 162 207 230 270 345 405 414 621 690 810 1035 1242 1863 2070 3105 3726 6210 7673 9315 15346 18630 23019 38365 46038 69057 76730 115095 138114 176479 207171 230190 345285 352958 414342 529437 621513 690570 882395 1035855 1058874 1243026 1588311 1764790 2071710 2647185 3107565 3176622 4764933 5294370 6215130 7941555 9529866 14294799 15883110 23824665 28589598 47649330 71473995 142947990
- Sum of all divisors σ(n): 401135328
- Sum of proper divisors (its aliquot sum) s(n): 258187338
- 142947990 is an abundant number, because the sum of its proper divisors (258187338) is greater than itself. Its abundance is 115239348
Bases of 142947990
- Binary: 10001000010100110110100101102
- Hexadecimal: 0x8853696
- Base-36: 2D3VDI
Squares and roots of 142947990
- 142947990 squared (1429479902) is 20434127845040100
- 142947990 cubed (1429479903) is 2921017502851513764399000
-
The
square root of 142947990 is 11956.0858979851 -
The
cube root of 142947990 is 522.8687475829
Scales and comparisons
How big is 142947990?- 142,947,990 seconds is equal to 4 years, 28 weeks, 2 days, 11 hours, 46 minutes, 30 seconds.
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To count from 1 to 142,947,990 would take you about six 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 142947990 cubic inches would be around 43.6 feet tall.
Recreational maths with 142947990
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