18678942984
18,678,942,984 is an even composite number composed of seven prime numbers multiplied together.
18678942984 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 18678942984:
23 × 3 × 13 × 17 × 71 × 193 × 257
(2 × 2 × 2 × 3 × 13 × 17 × 71 × 193 × 257)See below for interesting mathematical facts about the number 18678942984 from the Numbermatics database.
Names of 18678942984
- Cardinal: 18678942984 can be written as Eighteen billion, six hundred seventy-eight million, nine hundred forty-two thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 1.8678942984 × 1010
Factors of 18678942984
Divisors of 18678942984
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 6 8 12 13 17 24 26 34 39 51 52 68 71 78 102 104 136 142 156 193 204 213 221 257 284 312 386 408 426 442 514 568 579 663 771 772 852 884 923 1028 1158 1207 1326 1542 1544 1704 1768 1846 2056 2316 2414 2509 2652 2769 3084 3281 3341 3621 3692 4369 4632 4828 5018 5304 5538 6168 6562 6682 7242 7384 7527 8738 9656 9843 10023 10036 11076 13107 13124 13364 13703 14484 15054 15691 17476 18247 19686 20046 20072 22152 26214 26248 26728 27406 28968 30108 31382 34952 36494 39372 40092 41109 42653 47073 49601 52428 54741 54812 56797 60216 62764 72988 78744 80184 82218 85306 94146 99202 104856 109482 109624 113594 125528 127959 145976 148803 164436 170391 170612 178139 188292 198404 218964 227188 232951 237211 255918 297606 310199 328872 340782 341224 356278 376584 396808 437928 454376 465902 474422 511836 534417 595212 620398 644813 681564 698853 711633 712556 843217 930597 931804 948844 1023672 1068834 1190424 1240796 1289626 1363128 1397706 1423266 1425112 1686434 1861194 1863608 1897688 1934439 2137668 2481592 2529651 2579252 2795412 2846532 3028363 3372868 3521671 3722388 3868878 4032587 4275336 5059302 5158504 5590824 5693064 6056726 6745736 7043342 7444776 7737756 8065174 9085089 10118604 10565013 10961821 12097761 12113452 14086684 15475512 16130348 18170178 20237208 21130026 21923642 24195522 24226904 28173368 32260696 32885463 36340356 42260052 43847284 45781723 48391044 59868407 65770926 72680712 84520104 87694568 91563446 96782088 119736814 131541852 137345169 179605221 183126892 239473628 263083704 274690338 359210442 366253784 478947256 549380676 718420884 778289291 1098761352 1436841768 1556578582 2334867873 3113157164 4669735746 6226314328 9339471492 18678942984
- Sum of all divisors σ(n): 54488609280
- Sum of proper divisors (its aliquot sum) s(n): 35809666296
- 18678942984 is an abundant number, because the sum of its proper divisors (35809666296) is greater than itself. Its abundance is 17130723312
Bases of 18678942984
- Binary: 100010110010101101000001101000010002
- Hexadecimal: 0x4595A0D08
- Base-36: 8KWYKNC
Squares and roots of 18678942984
- 18678942984 squared (186789429842) is 348902910999522824256
- 18678942984 cubed (186789429843) is 6517137581511713285484476219904
-
The
square root of 18678942984 is 136670.9295497767 -
The
cube root of 18678942984 is 2653.2862036499
Scales and comparisons
How big is 18678942984?- 18,678,942,984 seconds is equal to 593 years, 48 weeks, 3 days, 11 hours, 16 minutes, 24 seconds.
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To count from 1 to 18,678,942,984 would take you about one thousand, one hundred eighty-seven 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 18678942984 cubic inches would be around 221.1 feet tall.
Recreational maths with 18678942984
- 18678942984 backwards is 48924987681
- The number of decimal digits it has is: 11
- The sum of 18678942984's digits is 66
- More coming soon!
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