18125408418

Names of 18125408418

• Cardinal: 18125408418 can be written as Eighteen billion, one hundred twenty-five million, four hundred eight thousand, four hundred eighteen.

Scientific notation

• Scientific notation: 1.8125408418 × 10¹⁰

Factors of 18125408418

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 724

Divisors of 18125408418

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 13 26 39 43 73 78 86 129 146 181 219 258 362 409 438 543 559 818 949 1086 1118 1227 1677 1898 2353 2454 2847 3139 3354 4706 5317 5694 6278 7059 7783 9417 10634 13213 14118 15566 15951 17587 18834 23349 26426 29857 31902 35174 39639 40807 46698 52761 59714 74029 79278 81614 89571 101179 105522 122421 148058 171769 179142 202358 222087 228631 244842 303537 343538 388141 444174 457262 515307 568159 607074 685893 776282 962377 1030614 1136318 1164423 1283851 1371786 1704477 1924754 2328846 2567702 2887131 3183247 3408954 3851553 5404117 5774262 6366494 7386067 7703106 9549741 10808234 14772134 16212351 16690063 19099482 22158201 32424702 33380126 41382211 44316402 50070189 70253521 82764422 100140378 124146633 140507042 210760563 232377031 248293266 421521126 464754062 697131093 1394262186 3020901403 6041802806 9062704209 18125408418
• Sum of all divisors σ(n): 40817736960
• Sum of proper divisors (its aliquot sum) s(n): 22692328542
• 18125408418 is an abundant number, because the sum of its proper divisors (22692328542) is greater than itself. Its abundance is 4566920124

Bases of 18125408418

• Binary: 10000111000010110111100100010100010₂
• Hexadecimal: 0x4385BC8A2
• Base-36: 8BREEN6

Squares and roots of 18125408418

• 18125408418 squared (18125408418²) is 328530430319305262724
• 18125408418 cubed (18125408418³) is 5954748227278698036889291210632
• The square root of 18125408418 is 134630.6369961905
• The cube root of 18125408418 is 2626.8136663037

Scales and comparisons

• 18,125,408,418 seconds is equal to 576 years, 17 weeks, 1 day, 19 hours, 40 minutes, 18 seconds.
• To count from 1 to 18,125,408,418 would take you about one thousand, one hundred fifty-two 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 18125408418 cubic inches would be around 218.9 feet tall.

Recreational maths with 18125408418

• 18125408418 backwards is 81480452181
• The number of decimal digits it has is: 11
• The sum of 18125408418's digits is 42
• More coming soon!