18108205920

Names of 18108205920

• Cardinal: 18108205920 can be written as Eighteen billion, one hundred eight million, two hundred five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.810820592 × 10¹⁰

Factors of 18108205920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4467

Divisors of 18108205920

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 449 480 504 560 630 672 720 840 898 1008 1120 1260 1347 1440 1680 1796 2016 2245 2520 2694 3143 3360 3592 4001 4041 4490 5040 5388 6286 6735 7184 8002 8082 8980 9429 10080 10776 12003 12572 13470 14368 15715 16004 16164 17960 18858 20005 20205 21552 24006 25144 26940 28007 28287 31430 32008 32328 35920 36009 37716 40010 40410 43104 47145 48012 50288 53880 56014 56574 60015 62860 64016 64656 71840 72018 75432 80020 80820 84021 94290 96024 100576 107760 112028 113148 120030 125720 128032 129312 140035 141435 144036 150864 160040 161640 168042 180045 188580 192048 215520 224056 226296 240060 251440 252063 280070 282870 288072 301728 320080 323280 336084 360090 377160 384096 420105 448112 452592 480120 502880 504126 560140 565740 576144 640160 646560 672168 720180 754320 840210 896224 905184 960240 1008252 1120280 1131480 1152288 1260315 1344336 1440360 1508640 1680420 1796449 1920480 2016504 2240560 2262960 2520630 2688672 2880720 3360840 3592898 4033008 4481120 4525920 5041260 5389347 5761440 6721680 7185796 8066016 8982245 10082520 10778694 12575143 13443360 14371592 16168041 17964490 20165040 21557388 25150286 26946735 28743184 32336082 35928980 37725429 40330080 43114776 50300572 53893470 57486368 62875715 64672164 71857960 75450858 80840205 86229552 100601144 107786940 113176287 125751430 129344328 143715920 150901716 161680410 172459104 188627145 201202288 215573880 226352574 251502860 258688656 287431840 301803432 323360820 377254290 402404576 431147760 452705148 503005720 517377312 565881435 603606864 646721640 754508580 862295520 905410296 1006011440 1131762870 1207213728 1293443280 1509017160 1810820592 2012022880 2263525740 2586886560 3018034320 3621641184 4527051480 6036068640 9054102960 18108205920
• Sum of all divisors σ(n): 70796980800
• Sum of proper divisors (its aliquot sum) s(n): 52688774880
• 18108205920 is an abundant number, because the sum of its proper divisors (52688774880) is greater than itself. Its abundance is 34580568960

Bases of 18108205920

• Binary: 10000110111010101010100101101100000₂
• Hexadecimal: 0x437554B60
• Base-36: 8BH5P40

Squares and roots of 18108205920

• 18108205920 squared (18108205920²) is 327907121641123046400
• 18108205920 cubed (18108205920³) is 5937809681311944464268914688000
• The square root of 18108205920 is 134566.7340764425
• The cube root of 18108205920 is 2625.9823827823

Scales and comparisons

• 18,108,205,920 seconds is equal to 575 years, 40 weeks, 5 days, 17 hours, 12 minutes.
• To count from 1 to 18,108,205,920 would take you about one thousand, one hundred fifty-one 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 18108205920 cubic inches would be around 218.8 feet tall.

Recreational maths with 18108205920

• 18108205920 backwards is 02950280181
• 18108205920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18108205920's digits is 36
• More coming soon!