642021400
642,021,400 is an even composite number composed of five prime numbers multiplied together.
642021400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 642021400:
23 × 52 × 19 × 107 × 1579
(2 × 2 × 2 × 5 × 5 × 19 × 107 × 1579)See below for interesting mathematical facts about the number 642021400 from the Numbermatics database.
Names of 642021400
- Cardinal: 642021400 can be written as Six hundred forty-two million, twenty-one thousand, four hundred.
Scientific notation
- Scientific notation: 6.420214 × 108
Factors of 642021400
Divisors of 642021400
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 107 152 190 200 214 380 428 475 535 760 856 950 1070 1579 1900 2033 2140 2675 3158 3800 4066 4280 5350 6316 7895 8132 10165 10700 12632 15790 16264 20330 21400 30001 31580 39475 40660 50825 60002 63160 78950 81320 101650 120004 150005 157900 168953 203300 240008 300010 315800 337906 406600 600020 675812 750025 844765 1200040 1351624 1500050 1689530 3000100 3210107 3379060 4223825 6000200 6420214 6758120 8447650 12840428 16050535 16895300 25680856 32101070 33790600 64202140 80252675 128404280 160505350 321010700 642021400
- Sum of all divisors σ(n): 1586952000
- Sum of proper divisors (its aliquot sum) s(n): 944930600
- 642021400 is an abundant number, because the sum of its proper divisors (944930600) is greater than itself. Its abundance is 302909200
Bases of 642021400
- Binary: 1001100100010001111000000110002
- Hexadecimal: 0x26447818
- Base-36: AM8QVS
Squares and roots of 642021400
- 642021400 squared (6420214002) is 412191478057960000
- 642021400 cubed (6420214003) is 264635749810840760344000000
-
The
square root of 642021400 is 25338.1412104361 -
The
cube root of 642021400 is 862.6802087917
Scales and comparisons
How big is 642021400?- 642,021,400 seconds is equal to 20 years, 21 weeks, 3 days, 19 hours, 16 minutes, 40 seconds.
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To count from 1 to 642,021,400 would take you about thirty 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 642021400 cubic inches would be around 71.9 feet tall.
Recreational maths with 642021400
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The information we have on file for 642021400 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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