18138868020
18,138,868,020 is an even composite number composed of seven prime numbers multiplied together.
18138868020 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of six hundred forty-eight divisors.
Prime factorization of 18138868020:
22 × 32 × 5 × 72 × 132 × 43 × 283
(2 × 2 × 3 × 3 × 5 × 7 × 7 × 13 × 13 × 43 × 283)See below for interesting mathematical facts about the number 18138868020 from the Numbermatics database.
Names of 18138868020
- Cardinal: 18138868020 can be written as Eighteen billion, one hundred thirty-eight million, eight hundred sixty-eight thousand and twenty.
Scientific notation
- Scientific notation: 1.813886802 × 1010
Factors of 18138868020
Divisors of 18138868020
- Number of divisors d(n): 648
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 28 30 35 36 39 42 43 45 49 52 60 63 65 70 78 84 86 90 91 98 105 117 126 129 130 140 147 156 169 172 180 182 195 196 210 215 234 245 252 258 260 273 283 294 301 315 338 364 387 390 420 430 441 455 468 490 507 516 546 559 566 585 588 602 630 637 645 676 735 774 780 819 845 849 860 882 903 910 980 1014 1092 1118 1132 1170 1183 1204 1260 1274 1290 1365 1415 1470 1505 1521 1548 1638 1677 1690 1698 1764 1806 1820 1911 1935 1981 2028 2107 2205 2236 2340 2366 2535 2547 2548 2580 2709 2730 2795 2830 2940 3010 3042 3185 3276 3354 3380 3396 3549 3612 3679 3822 3870 3913 3962 4095 4214 4245 4410 4515 4732 5031 5070 5094 5418 5460 5590 5660 5733 5915 5943 6020 6084 6321 6370 6708 7098 7267 7358 7605 7644 7740 7826 7924 8190 8281 8385 8428 8490 8820 9030 9555 9905 10062 10140 10188 10535 10647 10836 11037 11180 11466 11739 11830 11886 12169 12642 12735 12740 13545 13867 14196 14534 14716 15210 15652 16380 16562 16770 16980 17745 17829 18060 18395 18963 19110 19565 19810 20124 21070 21294 21801 22074 22932 23478 23660 23772 24338 24843 25155 25284 25470 25753 27090 27391 27734 28665 29068 29715 30420 31605 33111 33124 33540 35217 35490 35658 36335 36507 36790 37926 38220 39130 39620 41405 41601 42140 42588 43602 44148 46956 47827 48676 49686 50310 50869 50940 51506 53235 54180 54782 55185 55468 57330 58695 59430 60845 63210 65403 66222 69335 70434 70980 71316 72670 73014 73580 74529 75852 77259 78260 82173 82810 83202 85183 87204 89145 94815 95654 99372 100620 101738 103012 106470 109005 109521 109564 110370 114660 117390 118860 121690 124215 124803 126420 128765 130806 132444 136955 138670 140868 143481 145340 146028 149058 152607 154518 158197 164346 165555 165620 166404 170366 176085 178290 180271 182535 189630 191308 203476 208005 212940 218010 219042 220740 231777 234780 239135 243380 246519 248430 249606 254345 255549 257530 261612 273910 277340 286962 298116 305214 309036 316394 327015 328692 331110 334789 340732 352170 356083 356580 360542 365070 372645 379260 386295 410865 416010 425915 430443 436020 438084 457821 463554 474591 478270 493038 496860 499212 508690 511098 515060 540813 547605 547820 573924 596281 610428 624015 632788 654030 662220 669578 704340 712166 717405 721084 730140 745290 763035 766647 772590 790985 821730 832020 851830 860886 901355 915642 927108 949182 956540 986076 1004367 1017380 1022196 1068249 1081626 1095210 1107379 1158885 1192562 1232595 1248030 1277745 1308060 1339156 1423773 1424332 1434810 1490580 1526070 1533294 1545180 1581970 1622439 1643460 1673945 1703660 1721772 1780415 1788843 1802710 1831284 1898364 2008734 2056561 2136498 2152215 2163252 2190420 2214758 2289105 2317770 2343523 2372955 2385124 2465190 2496060 2555490 2704065 2847546 2869620 2981405 3013101 3052140 3066588 3163940 3204747 3244878 3322137 3347890 3560830 3577686 3605420 3833235 4017468 4113122 4272996 4304430 4429516 4578210 4635540 4687046 4745910 4930380 5021835 5110980 5341245 5366529 5408130 5536895 5695092 5962810 6026202 6169683 6409494 6489756 6644274 6695780 7030569 7118865 7121660 7155372 7666470 7751653 8112195 8226244 8608860 8944215 9156420 9374092 9491820 9966411 10043670 10282805 10682490 10733058 10816260 11073790 11717615 11925620 12052404 12339366 12818988 13288548 14061138 14237730 14395927 15065505 15332940 15503306 16023735 16224390 16610685 17888430 18509049 19932822 20087340 20565610 21091707 21364980 21466116 22147580 23254959 23435230 24678732 26832645 28122276 28475460 28791854 30131010 30848415 31006612 32047470 32448780 33221370 35152845 35776860 37018098 38758265 39865644 41131220 42183414 43187781 46509918 46870460 49832055 53665290 57583708 60262020 61696830 64094940 66442740 69764877 70305690 71979635 74036196 77516530 84366828 86375562 92545245 93019836 99664110 100771489 105458535 107330580 116274795 123393660 129563343 139529754 140611380 143959270 155033060 172751124 185090490 199328220 201542978 210917070 215938905 232549590 259126686 279059508 287918540 302314467 348824385 370180980 403085956 421834140 431877810 465099180 503857445 518253372 604628934 647816715 697648770 863755620 906943401 1007714890 1209257868 1295633430 1395297540 1511572335 1813886802 2015429780 2591266860 3023144670 3627773604 4534717005 6046289340 9069434010 18138868020
- Sum of all divisors σ(n): 71168793696
- Sum of proper divisors (its aliquot sum) s(n): 53029925676
- 18138868020 is an abundant number, because the sum of its proper divisors (53029925676) is greater than itself. Its abundance is 34891057656
Bases of 18138868020
- Binary: 100001110010010100100101001001101002
- Hexadecimal: 0x439292934
- Base-36: 8BZEW50
Squares and roots of 18138868020
- 18138868020 squared (181388680202) is 329018533046978720400
- 18138868020 cubed (181388680203) is 5968023747073155469084081608000
-
The
square root of 18138868020 is 134680.6148634613 -
The
cube root of 18138868020 is 2627.4637136063
Scales and comparisons
How big is 18138868020?- 18,138,868,020 seconds is equal to 576 years, 39 weeks, 3 days, 14 hours, 27 minutes.
-
To count from 1 to 18,138,868,020 would take you about one thousand, one hundred fifty-three 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 18138868020 cubic inches would be around 219 feet tall.
Recreational maths with 18138868020
- 18138868020 backwards is 02086883181
- 18138868020 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18138868020's digits is 45
- More coming soon!
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The information we have on file for 18138868020 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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