18198935040

Names of 18198935040

• Cardinal: 18198935040 can be written as Eighteen billion, one hundred ninety-eight million, nine hundred thirty-five thousand and forty.

Scientific notation

• Scientific notation: 1.819893504 × 10¹⁰

Factors of 18198935040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 334

Divisors of 18198935040

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 13 15 16 20 22 24 26 30 32 33 39 40 44 48 52 55 60 64 65 66 73 78 80 88 96 104 110 120 128 130 132 143 146 156 160 165 176 192 195 208 219 220 227 240 256 260 264 286 292 312 320 330 352 365 384 390 416 429 438 440 454 480 512 520 528 572 584 624 640 660 681 704 715 730 768 780 803 832 858 876 880 908 949 960 1040 1056 1095 1135 1144 1168 1248 1280 1320 1362 1408 1430 1460 1536 1560 1606 1664 1716 1752 1760 1816 1898 1920 2080 2112 2145 2190 2270 2288 2336 2409 2496 2497 2560 2640 2724 2816 2847 2860 2920 2951 3120 3212 3328 3405 3432 3504 3520 3632 3796 3840 4015 4160 4224 4290 4380 4540 4576 4672 4745 4818 4992 4994 5280 5448 5632 5694 5720 5840 5902 6240 6424 6656 6810 6864 7008 7040 7264 7491 7592 7680 8030 8320 8448 8580 8760 8853 9080 9152 9344 9490 9636 9984 9988 10439 10560 10896 11388 11440 11680 11804 12045 12480 12485 12848 13620 13728 14016 14080 14235 14528 14755 14982 15184 16060 16571 16640 16896 17160 17520 17706 18160 18304 18688 18980 19272 19968 19976 20878 21120 21792 22776 22880 23360 23608 24090 24960 24970 25696 27240 27456 28032 28160 28470 29056 29510 29964 30368 31317 32120 32461 33142 33280 34320 35040 35412 36320 36608 37376 37455 37960 38544 39952 41756 42240 43584 44265 45552 45760 46720 47216 48180 49713 49920 49940 51392 52195 54480 54912 56064 56940 58112 59020 59928 60736 62634 64240 64922 66284 68640 70080 70824 72640 73216 74910 75920 77088 79904 82855 83512 84480 87168 88530 91104 91520 93440 94432 96360 97383 99426 99840 99880 102784 104390 108960 109824 112128 113880 116224 118040 119856 121472 125268 128480 129844 132568 137280 140160 141648 145280 149820 151840 154176 156585 159808 162305 165710 167024 174336 177060 182208 182281 183040 186880 188864 192720 194766 198852 199760 205568 208780 215423 217920 219648 227760 236080 239712 242944 248565 250536 256960 259688 265136 274560 280320 283296 290560 299640 303680 308352 313170 319616 324610 331420 334048 348672 354120 364416 364562 366080 377728 385440 389532 397704 399520 411136 417560 430846 435840 455520 472160 479424 485888 486915 497130 501072 513920 519376 530272 546843 549120 560640 566592 581120 599280 607360 616704 626340 639232 646269 649220 662840 668096 708240 728832 729124 755456 770880 779064 795408 799040 835120 861692 871680 911040 911405 944320 958848 973830 994260 1002144 1027840 1038752 1060544 1077115 1093686 1098240 1133184 1198560 1214720 1233408 1252680 1278464 1292538 1298440 1325680 1336192 1416480 1457664 1458248 1510912 1541760 1558128 1590816 1598080 1670240 1723384 1743360 1822080 1822810 1888640 1917696 1947660 1988520 2004288 2055680 2077504 2121088 2154230 2187372 2266368 2369653 2397120 2429440 2505360 2585076 2596880 2651360 2672384 2734215 2832960 2916496 3083520 3116256 3181632 3196160 3231345 3340480 3446768 3644160 3645620 3777280 3835392 3895320 3977040 4008576 4155008 4242176 4308460 4374744 4532736 4739306 4794240 5010720 5170152 5193760 5302720 5344768 5468430 5665920 5832992 6167040 6232512 6363264 6392320 6462690 6680960 6893536 7108959 7288320 7291240 7554560 7790640 7954080 8017152 8310016 8484352 8616920 8749488 9478612 9588480 10021440 10340304 10387520 10605440 10936860 11331840 11665984 11848265 12465024 12726528 12925380 13361920 13787072 14217918 14582480 15581280 15908160 16034304 16620032 17233840 17498976 18957224 19176960 20042880 20680608 20775040 21210880 21873720 22663680 23331968 23696530 24930048 25453056 25850760 26723840 27574144 28435836 29164960 31162560 31816320 34467680 34997952 35544795 37914448 40085760 41361216 41550080 42421760 43747440 46663936 47393060 49860096 51701520 55148288 56871672 58329920 62325120 63632640 68935360 69995904 71089590 75828896 80171520 82722432 83100160 87494880 93327872 94786120 103403040 110296576 113743344 116659840 124650240 127265280 137870720 139991808 142179180 151657792 165444864 174989760 189572240 206806080 227486688 233319680 249300480 275741440 279983616 284358360 303315584 330889728 349979520 379144480 413612160 454973376 466639360 551482880 568716720 606631168 699959040 758288960 827224320 909946752 1137433440 1213262336 1399918080 1516577920 1654448640 1819893504 2274866880 3033155840 3639787008 4549733760 6066311680 9099467520 18198935040
• Sum of all divisors σ(n): 69592545792
• Sum of proper divisors (its aliquot sum) s(n): 51393610752
• 18198935040 is an abundant number, because the sum of its proper divisors (51393610752) is greater than itself. Its abundance is 33194675712

Bases of 18198935040

• Binary: 10000111100101111011011011000000000₂
• Hexadecimal: 0x43CBDB600
• Base-36: 8CZ6C5C

Squares and roots of 18198935040

• 18198935040 squared (18198935040²) is 331201236590139801600
• 18198935040 cubed (18198935040³) is 6027509789871625353836888064000
• The square root of 18198935040 is 134903.4285702181
• The cube root of 18198935040 is 2630.3608077229

Scales and comparisons

• 18,198,935,040 seconds is equal to 578 years, 34 weeks, 5 days, 19 hours, 44 minutes.
• To count from 1 to 18,198,935,040 would take you about one thousand, one hundred fifty-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 18198935040 cubic inches would be around 219.2 feet tall.

Recreational maths with 18198935040

• 18198935040 backwards is 04053989181
• 18198935040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18198935040's digits is 48
• More coming soon!