18139680
18,139,680 is an even composite number composed of six prime numbers multiplied together.
18139680 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 18139680:
25 × 33 × 5 × 13 × 17 × 19
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 13 × 17 × 19)See below for interesting mathematical facts about the number 18139680 from the Numbermatics database.
Names of 18139680
- Cardinal: 18139680 can be written as Eighteen million, one hundred thirty-nine thousand, six hundred eighty.
Scientific notation
- Scientific notation: 1.813968 × 107
Factors of 18139680
Divisors of 18139680
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 19 20 24 26 27 30 32 34 36 38 39 40 45 48 51 52 54 57 60 65 68 72 76 78 80 85 90 95 96 102 104 108 114 117 120 130 135 136 144 152 153 156 160 170 171 180 190 195 204 208 216 221 228 234 240 247 255 260 270 272 285 288 304 306 312 323 340 342 351 360 380 390 408 416 432 442 456 459 468 480 494 510 513 520 540 544 570 585 608 612 624 646 663 680 684 702 720 741 760 765 780 816 855 864 884 912 918 936 969 988 1020 1026 1040 1080 1105 1140 1170 1224 1235 1248 1292 1326 1360 1368 1404 1440 1482 1520 1530 1560 1615 1632 1710 1755 1768 1824 1836 1872 1938 1976 1989 2040 2052 2080 2160 2210 2223 2280 2295 2340 2448 2470 2565 2584 2652 2720 2736 2808 2907 2964 3040 3060 3120 3230 3315 3420 3510 3536 3672 3705 3744 3876 3952 3978 4080 4104 4199 4320 4420 4446 4560 4590 4680 4845 4896 4940 5130 5168 5304 5472 5616 5814 5928 5967 6120 6240 6460 6630 6669 6840 7020 7072 7344 7410 7752 7904 7956 8160 8208 8398 8721 8840 8892 9120 9180 9360 9690 9880 9945 10260 10336 10608 11115 11232 11628 11856 11934 12240 12597 12920 13260 13338 13680 14040 14535 14688 14820 15504 15912 16416 16796 17442 17680 17784 18360 18720 19380 19760 19890 20520 20995 21216 22230 23256 23712 23868 24480 25194 25840 26520 26676 27360 28080 29070 29640 29835 31008 31824 33345 33592 34884 35360 35568 36720 37791 38760 39520 39780 41040 41990 43605 44460 46512 47736 50388 51680 53040 53352 56160 58140 59280 59670 62985 63648 66690 67184 69768 71136 73440 75582 77520 79560 82080 83980 87210 88920 93024 95472 100776 106080 106704 113373 116280 118560 119340 125970 133380 134368 139536 151164 155040 159120 167960 174420 177840 188955 190944 201552 213408 226746 232560 238680 251940 266760 279072 302328 318240 335920 348840 355680 377910 403104 453492 465120 477360 503880 533520 566865 604656 671840 697680 755820 906984 954720 1007760 1067040 1133730 1209312 1395360 1511640 1813968 2015520 2267460 3023280 3627936 4534920 6046560 9069840 18139680
- Sum of all divisors σ(n): 76204800
- Sum of proper divisors (its aliquot sum) s(n): 58065120
- 18139680 is an abundant number, because the sum of its proper divisors (58065120) is greater than itself. Its abundance is 39925440
Bases of 18139680
- Binary: 10001010011001010001000002
- Hexadecimal: 0x114CA20
- Base-36: ASSO0
Squares and roots of 18139680
- 18139680 squared (181396802) is 329047990502400
- 18139680 cubed (181396803) is 5968825252356575232000
-
The
square root of 18139680 is 4259.0703210913 -
The
cube root of 18139680 is 262.7502918849
Scales and comparisons
How big is 18139680?- 18,139,680 seconds is equal to 29 weeks, 6 days, 22 hours, 48 minutes.
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To count from 1 to 18,139,680 would take you about forty-four weeks!
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 18139680 cubic inches would be around 21.9 feet tall.
Recreational maths with 18139680
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