842729940
842,729,940 is an even composite number composed of five prime numbers multiplied together.
842729940 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 842729940:
22 × 33 × 5 × 13 × 120047
(2 × 2 × 3 × 3 × 3 × 5 × 13 × 120047)See below for interesting mathematical facts about the number 842729940 from the Numbermatics database.
Names of 842729940
- Cardinal: 842729940 can be written as Eight hundred forty-two million, seven hundred twenty-nine thousand, nine hundred forty.
Scientific notation
- Scientific notation: 8.4272994 × 108
Factors of 842729940
Divisors of 842729940
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020 120047 240094 360141 480188 600235 720282 1080423 1200470 1440564 1560611 1800705 2160846 2400940 3121222 3241269 3601410 4321692 4681833 5402115 6242444 6482538 7202820 7803055 9363666 10804230 12965076 14045499 15606110 16206345 18727332 21608460 23409165 28090998 31212220 32412690 42136497 46818330 56181996 64825380 70227495 84272994 93636660 140454990 168545988 210682485 280909980 421364970 842729940
- Sum of all divisors σ(n): 2823528960
- Sum of proper divisors (its aliquot sum) s(n): 1980799020
- 842729940 is an abundant number, because the sum of its proper divisors (1980799020) is greater than itself. Its abundance is 1138069080
Bases of 842729940
- Binary: 1100100011101100001001110101002
- Hexadecimal: 0x323B09D4
- Base-36: DXQML0
Squares and roots of 842729940
- 842729940 squared (8427299402) is 710193751772403600
- 842729940 cubed (8427299403) is 598501537819532579483784000
-
The
square root of 842729940 is 29029.8112291485 -
The
cube root of 842729940 is 944.5598353231
Scales and comparisons
How big is 842729940?- 842,729,940 seconds is equal to 26 years, 41 weeks, 2 days, 19 hours, 39 minutes.
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To count from 1 to 842,729,940 would take you about forty 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 842729940 cubic inches would be around 78.7 feet tall.
Recreational maths with 842729940
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