20387384920
20,387,384,920 is an even composite number composed of five prime numbers multiplied together.
20387384920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 20387384920:
23 × 5 × 73 × 232 × 532
(2 × 2 × 2 × 5 × 7 × 7 × 7 × 23 × 23 × 53 × 53)See below for interesting mathematical facts about the number 20387384920 from the Numbermatics database.
Names of 20387384920
- Cardinal: 20387384920 can be written as Twenty billion, three hundred eighty-seven million, three hundred eighty-four thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.038738492 × 1010
Factors of 20387384920
Divisors of 20387384920
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 23 28 35 40 46 49 53 56 70 92 98 106 115 140 161 184 196 212 230 245 265 280 322 343 371 392 424 460 490 529 530 644 686 742 805 920 980 1058 1060 1127 1219 1288 1372 1484 1610 1715 1855 1960 2116 2120 2254 2438 2597 2645 2744 2809 2968 3220 3430 3703 3710 4232 4508 4876 5194 5290 5618 5635 6095 6440 6860 7406 7420 7889 8533 9016 9752 10388 10580 11236 11270 12190 12985 13720 14045 14812 14840 15778 17066 18179 18515 19663 20776 21160 22472 22540 24380 25921 25970 28037 28090 29624 31556 34132 36358 37030 39326 39445 42665 45080 48760 51842 51940 56074 56180 59731 63112 64607 68264 72716 74060 78652 78890 85330 90895 98315 103684 103880 112148 112360 119462 129214 129605 137641 140185 145432 148120 157304 157780 170660 181447 181790 196259 196630 207368 224296 238924 258428 259210 275282 280370 298655 315560 323035 341320 362894 363580 392518 393260 418117 452249 477848 516856 518420 550564 560740 597310 646070 688205 725788 727160 785036 786520 836234 904498 907235 963487 981295 1036840 1101128 1121480 1194620 1292140 1373813 1376410 1451576 1485961 1570072 1672468 1808996 1814470 1926974 1962590 2090585 2261245 2389240 2584280 2747626 2752820 2971922 3165743 3344936 3617992 3628940 3853948 3925180 4181170 4522490 4817435 5495252 5505640 5943844 6331486 6869065 7257880 7429805 7707896 7850360 8362340 9044980 9616691 9634870 10401727 10990504 11887688 12662972 13738130 14859610 15828715 16724680 18089960 19233382 19269740 20803454 22160201 25325944 27476260 29719220 31657430 38466764 38539480 41606908 44320402 48083455 52008635 54952520 59438440 63314860 72812089 76933528 83213816 88640804 96166910 104017270 110801005 126629720 145624178 177281608 192333820 208034540 221602010 291248356 364060445 384667640 416069080 443204020 509684623 582496712 728120890 886408040 1019369246 1456241780 2038738492 2548423115 2912483560 4077476984 5096846230 10193692460 20387384920
- Sum of all divisors σ(n): 56996604000
- Sum of proper divisors (its aliquot sum) s(n): 36609219080
- 20387384920 is an abundant number, because the sum of its proper divisors (36609219080) is greater than itself. Its abundance is 16221834160
Bases of 20387384920
- Binary: 100101111110010111011001110010110002
- Hexadecimal: 0x4BF2ECE58
- Base-36: 9D64EVS
Squares and roots of 20387384920
- 20387384920 squared (203873849202) is 415645463876243406400
- 20387384920 cubed (203873849203) is 8473924062296929569888791488000
-
The
square root of 20387384920 is 142784.4001283053 -
The
cube root of 20387384920 is 2731.8310748897
Scales and comparisons
How big is 20387384920?- 20,387,384,920 seconds is equal to 648 years, 13 weeks, 2 days, 2 hours, 28 minutes, 40 seconds.
-
To count from 1 to 20,387,384,920 would take you about one thousand, two hundred ninety-six 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 20387384920 cubic inches would be around 227.7 feet tall.
Recreational maths with 20387384920
- 20387384920 backwards is 02948378302
- 20387384920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 20387384920's digits is 46
- More coming soon!
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