1421387840
1,421,387,840 is an even composite number composed of four prime numbers multiplied together.
1421387840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.
Prime factorization of 1421387840:
26 × 5 × 61 × 72817
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 61 × 72817)See below for interesting mathematical facts about the number 1421387840 from the Numbermatics database.
Names of 1421387840
- Cardinal: 1421387840 can be written as One billion, four hundred twenty-one million, three hundred eighty-seven thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.42138784 × 109
Factors of 1421387840
Divisors of 1421387840
- Number of divisors d(n): 56
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Complete list of divisors:
1 2 4 5 8 10 16 20 32 40 61 64 80 122 160 244 305 320 488 610 976 1220 1952 2440 3904 4880 9760 19520 72817 145634 291268 364085 582536 728170 1165072 1456340 2330144 2912680 4441837 4660288 5825360 8883674 11650720 17767348 22209185 23301440 35534696 44418370 71069392 88836740 142138784 177673480 284277568 355346960 710693920 1421387840
- Sum of all divisors σ(n): 3440213592
- Sum of proper divisors (its aliquot sum) s(n): 2018825752
- 1421387840 is an abundant number, because the sum of its proper divisors (2018825752) is greater than itself. Its abundance is 597437912
Bases of 1421387840
- Binary: 10101001011100010101000010000002
- Hexadecimal: 0x54B8A840
- Base-36: NI99VK
Squares and roots of 1421387840
- 1421387840 squared (14213878402) is 2020343391699865600
- 1421387840 cubed (14213878403) is 2871691529586545893474304000
-
The
square root of 1421387840 is 37701.2975904013 -
The
cube root of 1421387840 is 1124.3569236659
Scales and comparisons
How big is 1421387840?- 1,421,387,840 seconds is equal to 45 years, 10 weeks, 1 day, 5 hours, 57 minutes, 20 seconds.
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To count from 1 to 1,421,387,840 would take you about ninety 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 1421387840 cubic inches would be around 93.7 feet tall.
Recreational maths with 1421387840
- 1421387840 backwards is 0487831241
- The number of decimal digits it has is: 10
- The sum of 1421387840's digits is 38
- More coming soon!
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The information we have on file for 1421387840 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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