18204400890

Names of 18204400890

• Cardinal: 18204400890 can be written as Eighteen billion, two hundred four million, four hundred thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.820440089 × 10¹⁰

Factors of 18204400890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2095

Divisors of 18204400890

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 135 162 195 234 243 270 331 351 390 405 486 585 662 702 810 993 1053 1170 1215 1655 1741 1755 1986 2106 2430 2979 3159 3310 3482 3510 4303 4965 5223 5265 5958 6318 8606 8705 8937 9930 10446 10530 12909 14895 15669 15795 17410 17874 21515 22633 25818 26115 26811 29790 31338 31590 38727 43030 44685 45266 47007 52230 53622 64545 67899 77454 78345 80433 89370 94014 113165 116181 129090 134055 135798 141021 156690 160866 193635 203697 226330 232362 235035 268110 282042 339495 348543 387270 402165 407394 423063 470070 576271 580905 611091 678990 697086 705105 804330 846126 1018485 1045629 1152542 1161810 1222182 1410210 1728813 1742715 1833273 2036970 2091258 2115315 2881355 3055455 3457626 3485430 3666546 4230630 5186439 5228145 5499819 5762710 6110910 7491523 8644065 9166365 10372878 10456290 10999638 14983046 15559317 17288130 18332730 22474569 25932195 27499095 31118634 37457615 44949138 46677951 51864390 54998190 67423707 74915230 77796585 93355902 112372845 134847414 140033853 155593170 202271121 224745690 233389755 280067706 337118535 404542242 466779510 606813363 674237070 700169265 1011355605 1213626726 1400338530 1820440089 2022711210 3034066815 3640880178 6068133630 9102200445 18204400890
• Sum of all divisors σ(n): 53050338432
• Sum of proper divisors (its aliquot sum) s(n): 34845937542
• 18204400890 is an abundant number, because the sum of its proper divisors (34845937542) is greater than itself. Its abundance is 16641536652

Bases of 18204400890

• Binary: 10000111101000100010001110011111010₂
• Hexadecimal: 0x43D111CFA
• Base-36: 8D2FHMI

Squares and roots of 18204400890

• 18204400890 squared (18204400890²) is 331400211763832792100
• 18204400890 cubed (18204400890³) is 6032942309979706150316424969000
• The square root of 18204400890 is 134923.6854299497
• The cube root of 18204400890 is 2630.6241146781

Scales and comparisons

• 18,204,400,890 seconds is equal to 578 years, 43 weeks, 6 days, 2 hours, 1 minute, 30 seconds.
• To count from 1 to 18,204,400,890 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 18204400890 cubic inches would be around 219.2 feet tall.

Recreational maths with 18204400890

• 18204400890 backwards is 09800440281
• The number of decimal digits it has is: 11
• The sum of 18204400890's digits is 36
• More coming soon!