18198190400

Names of 18198190400

• Cardinal: 18198190400 can be written as Eighteen billion, one hundred ninety-eight million, one hundred ninety thousand, four hundred.

Scientific notation

• Scientific notation: 1.81981904 × 10¹⁰

Factors of 18198190400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 218

Divisors of 18198190400

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 31 32 40 50 52 62 64 65 80 100 104 124 130 155 160 167 169 200 208 248 260 310 320 325 334 338 400 403 416 496 520 620 650 668 676 775 800 806 832 835 845 992 1040 1240 1300 1336 1352 1550 1600 1612 1670 1690 1984 2015 2080 2171 2197 2480 2600 2672 2704 3100 3224 3340 3380 4030 4160 4175 4225 4342 4394 4960 5177 5200 5239 5344 5408 6200 6448 6680 6760 8060 8350 8450 8684 8788 9920 10075 10354 10400 10478 10688 10816 10855 10985 12400 12896 13360 13520 16120 16700 16900 17368 17576 20150 20708 20800 20956 21710 21970 24800 25792 25885 26195 26720 27040 28223 32240 33400 33800 34736 35152 40300 41416 41912 43420 43940 49600 51770 52390 53440 54080 54275 54925 56446 64480 66800 67301 67600 68107 69472 70304 80600 82832 83824 86840 87880 103540 104780 108550 109850 112892 128960 129425 130975 133600 134602 135200 136214 138944 140608 141115 161200 165664 167648 173680 175760 207080 209560 217100 219700 225784 258850 261950 267200 269204 270400 272428 282230 322400 331328 335296 336505 340535 347360 351520 366899 414160 419120 434200 439400 451568 517700 523900 538408 544856 564460 644800 673010 681070 694720 703040 705575 733798 828320 838240 868400 874913 878800 903136 1035400 1047800 1076816 1089712 1128920 1346020 1362140 1411150 1467596 1656640 1676480 1682525 1702675 1736800 1749826 1757600 1806272 1834495 2070800 2095600 2153632 2179424 2257840 2692040 2724280 2822300 2935192 3365050 3405350 3473600 3499652 3515200 3668990 4141600 4191200 4307264 4358848 4374565 4515680 5384080 5448560 5644600 5870384 6730100 6810700 6999304 7337980 8283200 8382400 8749130 9031360 9172475 10768160 10897120 11289200 11373869 11740768 13460200 13621400 13998608 14675960 17498260 18344950 21536320 21794240 21872825 22578400 22747738 23481536 26920400 27242800 27997216 29351920 34996520 36689900 43745650 45156800 45495476 53840800 54485600 55994432 56869345 58703840 69993040 73379800 87491300 90990952 107681600 108971200 113738690 117407680 139986080 146759600 174982600 181981904 227477380 279972160 284346725 293519200 349965200 363963808 454954760 568693450 587038400 699930400 727927616 909909520 1137386900 1399860800 1819819040 2274773800 3639638080 4549547600 9099095200 18198190400
• Sum of all divisors σ(n): 50373442560
• Sum of proper divisors (its aliquot sum) s(n): 32175252160
• 18198190400 is an abundant number, because the sum of its proper divisors (32175252160) is greater than itself. Its abundance is 13977061760

Bases of 18198190400

• Binary: 10000111100101100100101100101000000₂
• Hexadecimal: 0x43CB25940
• Base-36: 8CYQDKW

Squares and roots of 18198190400

• 18198190400 squared (18198190400²) is 331174133834652160000
• 18198190400 cubed (18198190400³) is 6026769943078082125451264000000
• The square root of 18198190400 is 134900.6686417825
• The cube root of 18198190400 is 2630.3249320231

Scales and comparisons

• 18,198,190,400 seconds is equal to 578 years, 33 weeks, 4 days, 4 hours, 53 minutes, 20 seconds.
• To count from 1 to 18,198,190,400 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 18198190400 cubic inches would be around 219.2 feet tall.

Recreational maths with 18198190400

• 18198190400 backwards is 00409189181
• The number of decimal digits it has is: 11
• The sum of 18198190400's digits is 41
• More coming soon!