21427976790
21,427,976,790 is an even composite number composed of seven prime numbers multiplied together.
21427976790 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21427976790:
2 × 33 × 5 × 11 × 71 × 307 × 331
(2 × 3 × 3 × 3 × 5 × 11 × 71 × 307 × 331)See below for interesting mathematical facts about the number 21427976790 from the Numbermatics database.
Names of 21427976790
- Cardinal: 21427976790 can be written as Twenty-one billion, four hundred twenty-seven million, nine hundred seventy-six thousand, seven hundred ninety.
Scientific notation
- Scientific notation: 2.142797679 × 1010
Factors of 21427976790
Divisors of 21427976790
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 71 90 99 110 135 142 165 198 213 270 297 307 330 331 355 426 495 594 614 639 662 710 781 921 990 993 1065 1278 1485 1535 1562 1655 1842 1917 1986 2130 2343 2763 2970 2979 3070 3195 3310 3377 3641 3834 3905 4605 4686 4965 5526 5958 6390 6754 7029 7282 7810 8289 8937 9210 9585 9930 10131 10923 11715 13815 14058 14895 16578 16885 17874 18205 19170 20262 21087 21797 21846 23430 23501 27630 29790 30393 32769 33770 35145 36410 41445 42174 43594 44685 47002 50655 54615 60786 65391 65538 70290 70503 82890 89370 91179 98307 101310 101617 105435 108985 109230 117505 130782 141006 151965 163845 182358 196173 196614 203234 210870 211509 217970 235010 239767 258511 303930 304851 326955 327690 352515 392346 423018 455895 479534 491535 508085 517022 588519 609702 634527 653910 705030 719301 775533 911790 914553 980865 983070 1016170 1057545 1117787 1177038 1198835 1269054 1292555 1438602 1524255 1551066 1829106 1961730 2115090 2157903 2235574 2326599 2397670 2585110 2743659 2942595 3048510 3172635 3353361 3596505 3877665 4315806 4572765 4653198 5487318 5588935 5885190 6345270 6473709 6706722 6979797 7193010 7214807 7755330 9145530 10060083 10789515 11177870 11632995 12947418 13718295 13959594 14429614 16766805 20120166 21579030 21644421 23265990 27436590 30180249 32368545 33533610 34898985 36074035 43288842 50300415 60360498 64737090 64933263 69797970 72148070 79362877 100600830 108222105 129866526 150901245 158725754 194799789 216444210 238088631 301802490 324666315 389599578 396814385 476177262 649332630 714265893 793628770 973998945 1190443155 1428531786 1947997890 2142797679 2380886310 3571329465 4285595358 7142658930 10713988395 21427976790
- Sum of all divisors σ(n): 63611412480
- Sum of proper divisors (its aliquot sum) s(n): 42183435690
- 21427976790 is an abundant number, because the sum of its proper divisors (42183435690) is greater than itself. Its abundance is 20755458900
Bases of 21427976790
- Binary: 100111111010011010011111010010101102
- Hexadecimal: 0x4FD34FA56
- Base-36: 9UDNWPI
Squares and roots of 21427976790
- 21427976790 squared (214279767902) is 459158189312778704100
- 21427976790 cubed (214279767903) is 9838831023532648121861077839000
-
The
square root of 21427976790 is 146382.9798508009 -
The
cube root of 21427976790 is 2777.5404289001
Scales and comparisons
How big is 21427976790?- 21,427,976,790 seconds is equal to 681 years, 17 weeks, 5 days, 23 hours, 46 minutes, 30 seconds.
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To count from 1 to 21,427,976,790 would take you about one thousand, three hundred sixty-two 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 21427976790 cubic inches would be around 231.5 feet tall.
Recreational maths with 21427976790
- 21427976790 backwards is 09767972412
- 21427976790 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21427976790's digits is 54
- More coming soon!
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