18394801920

Names of 18394801920

• Cardinal: 18394801920 can be written as Eighteen billion, three hundred ninety-four million, eight hundred one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.839480192 × 10¹⁰

Factors of 18394801920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 148

Divisors of 18394801920

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 81 88 90 96 99 108 110 120 127 128 132 135 144 160 162 165 176 180 192 198 216 220 240 254 256 264 270 288 297 320 324 330 352 360 381 384 396 405 432 440 480 495 508 528 540 576 594 635 640 648 660 704 720 762 768 792 810 864 880 891 960 990 1016 1056 1080 1143 1152 1188 1270 1280 1296 1320 1397 1408 1440 1485 1524 1584 1620 1728 1760 1782 1905 1920 1980 2032 2112 2160 2286 2304 2376 2540 2592 2640 2794 2816 2880 2970 3048 3168 3240 3429 3456 3520 3564 3810 3840 3960 4064 4191 4224 4320 4455 4572 4752 5080 5184 5280 5588 5715 5760 5940 6096 6336 6480 6858 6912 6985 7040 7128 7620 7920 8128 8382 8448 8640 8910 9144 9504 10160 10287 10368 10560 11176 11430 11520 11880 12192 12573 12672 12960 13716 13970 14080 14256 15240 15840 16129 16256 16764 17145 17280 17820 18288 19008 20320 20574 20736 20955 21120 22352 22860 23760 24384 25146 25344 25920 27432 27940 28512 30480 31680 32258 32512 33528 34290 34560 35640 36576 37719 38016 40640 41148 41910 42240 44704 45720 47520 48387 48768 50292 51435 51840 54864 55880 57024 60960 62865 63360 64516 67056 68580 71280 73152 75438 76032 80645 81280 82296 83820 89408 91440 95040 96774 97536 100584 102870 103680 109728 111760 113157 114048 121920 125730 126720 129032 134112 137160 142560 145161 146304 150876 161290 162560 164592 167640 177419 178816 182880 188595 190080 193548 201168 205740 219456 223520 226314 228096 241935 243840 251460 258064 268224 274320 285120 290322 292608 301752 322580 329184 335280 354838 357632 365760 377190 380160 387096 402336 411480 435483 438912 447040 452628 483870 487680 502920 516128 532257 536448 548640 565785 570240 580644 603504 645160 658368 670560 709676 725805 731520 754380 774192 804672 822960 870966 877824 887095 894080 905256 967740 1005840 1032256 1064514 1072896 1097280 1131570 1140480 1161288 1207008 1290320 1306449 1316736 1341120 1419352 1451610 1463040 1508760 1548384 1596771 1609344 1645920 1741932 1774190 1788160 1810512 1935480 2011680 2064512 2129028 2177415 2194560 2263140 2322576 2414016 2580640 2612898 2633472 2661285 2682240 2838704 2903220 3017520 3096768 3193542 3218688 3291840 3483864 3548380 3621024 3870960 4023360 4129024 4258056 4354830 4389120 4526280 4645152 4790313 4828032 5161280 5225796 5322570 5364480 5677408 5806440 6035040 6193536 6387084 6532245 6583680 6967728 7096760 7242048 7741920 7983855 8046720 8516112 8709660 9052560 9290304 9580626 9656064 10322560 10451592 10645140 11354816 11612880 12070080 12387072 12774168 13064490 13167360 13935456 14193520 14370939 14484096 15483840 15967710 16093440 17032224 17419320 18105120 18580608 19161252 20645120 20903184 21290280 22709632 23225760 23951565 24140160 25548336 26128980 27870912 28387040 28741878 28968192 30967680 31935420 34064448 34838640 36210240 37161216 38322504 41806368 42580560 45419264 46451520 47903130 48280320 51096672 52257960 55741824 56774080 57483756 61935360 63870840 68128896 69677280 71854695 72420480 76645008 83612736 85161120 92903040 95806260 102193344 104515920 111483648 113548160 114967512 127741680 136257792 139354560 143709390 144840960 153290016 167225472 170322240 185806080 191612520 204386688 209031840 227096320 229935024 255483360 278709120 287418780 306580032 334450944 340644480 383225040 408773376 418063680 459870048 510966720 557418240 574837560 613160064 681288960 766450080 836127360 919740096 1021933440 1149675120 1226320128 1532900160 1672254720 1839480192 2043866880 2299350240 3065800320 3678960384 4598700480 6131600640 9197400960 18394801920
• Sum of all divisors σ(n): 72373432824
• Sum of proper divisors (its aliquot sum) s(n): 53978630904
• 18394801920 is an abundant number, because the sum of its proper divisors (53978630904) is greater than itself. Its abundance is 35583828984

Bases of 18394801920

• Binary: 10001001000011010100110011100000000₂
• Hexadecimal: 0x4486A6700
• Base-36: 8G7SG00

Squares and roots of 18394801920

• 18394801920 squared (18394801920²) is 338368737676035686400
• 18394801920 cubed (18394801920³) is 6224225905471117582179237888000
• The square root of 18394801920 is 135627.4379320055
• The cube root of 18394801920 is 2639.7636151983

Scales and comparisons

• 18,394,801,920 seconds is equal to 584 years, 46 weeks, 4 days, 19 hours, 12 minutes.
• To count from 1 to 18,394,801,920 would take you about one thousand, one hundred sixty-nine 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 18394801920 cubic inches would be around 220 feet tall.

Recreational maths with 18394801920

• 18394801920 backwards is 02910849381
• 18394801920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18394801920's digits is 45
• More coming soon!