2121745990
2,121,745,990 is an even composite number composed of six prime numbers multiplied together.
2121745990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 2121745990:
2 × 5 × 7 × 132 × 432 × 97
(2 × 5 × 7 × 13 × 13 × 43 × 43 × 97)See below for interesting mathematical facts about the number 2121745990 from the Numbermatics database.
Names of 2121745990
- Cardinal: 2121745990 can be written as Two billion, one hundred twenty-one million, seven hundred forty-five thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.12174599 × 109
Factors of 2121745990
Divisors of 2121745990
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 5 7 10 13 14 26 35 43 65 70 86 91 97 130 169 182 194 215 301 338 430 455 485 559 602 679 845 910 970 1118 1183 1261 1358 1505 1690 1849 2366 2522 2795 3010 3395 3698 3913 4171 5590 5915 6305 6790 7267 7826 8342 8827 9245 11830 12610 12943 14534 16393 17654 18490 19565 20855 24037 25886 29197 32786 36335 39130 41710 44135 48074 50869 54223 58394 64715 72670 81965 88270 101738 108446 114751 120185 129430 145985 163930 168259 179353 229502 240370 254345 271115 291970 312481 336518 358706 379561 508690 542230 573755 624962 704899 759122 841295 896765 1147510 1255471 1409798 1562405 1682590 1793530 1897805 2187367 2331589 2510942 3124810 3524495 3795610 4374734 4663178 4934293 6277355 7048990 9868586 10936835 11657945 12554710 16321123 21873670 23315890 24671465 30310657 32642246 49342930 60621314 81605615 151553285 163211230 212174599 303106570 424349198 1060872995 2121745990
- Sum of all divisors σ(n): 4888664928
- Sum of proper divisors (its aliquot sum) s(n): 2766918938
- 2121745990 is an abundant number, because the sum of its proper divisors (2766918938) is greater than itself. Its abundance is 645172948
Bases of 2121745990
- Binary: 11111100111011101000110010001102
- Hexadecimal: 0x7E774646
- Base-36: Z38DOM
Squares and roots of 2121745990
- 2121745990 squared (21217459902) is 4501806046081080100
- 2121745990 cubed (21217459903) is 9551688926030286917043799000
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The
square root of 2121745990 is 46062.4140704761 -
The
cube root of 2121745990 is 1284.9842266681
Scales and comparisons
How big is 2121745990?- 2,121,745,990 seconds is equal to 67 years, 24 weeks, 1 day, 5 hours, 53 minutes, 10 seconds.
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To count from 1 to 2,121,745,990 would take you about one hundred thirty-four 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 2121745990 cubic inches would be around 107.1 feet tall.
Recreational maths with 2121745990
- 2121745990 backwards is 0995471212
- The number of decimal digits it has is: 10
- The sum of 2121745990's digits is 40
- More coming soon!
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The information we have on file for 2121745990 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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