18613413728

Names of 18613413728

• Cardinal: 18613413728 can be written as Eighteen billion, six hundred thirteen million, four hundred thirteen thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8613413728 × 10¹⁰

Factors of 18613413728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 81012

Divisors of 18613413728

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 79 91 104 112 158 182 208 224 316 364 416 553 632 728 1027 1106 1264 1456 2054 2212 2528 2912 4108 4424 7189 8216 8848 14378 16432 17696 28756 32864 57512 80911 115024 161822 230048 323644 566377 647288 1051843 1132754 1294576 2103686 2265508 2589152 4207372 4531016 6391969 7362901 8414744 9062032 12783938 14725802 16829488 18124064 25567876 29451604 33658976 44743783 51135752 58903208 83095597 89487566 102271504 117806416 166191194 178975132 204543008 235612832 332382388 357950264 581669179 664764776 715900528 1163338358 1329529552 1431801056 2326676716 2659059104 4653353432 9306706864 18613413728
• Sum of all divisors σ(n): 45673205760
• Sum of proper divisors (its aliquot sum) s(n): 27059792032
• 18613413728 is an abundant number, because the sum of its proper divisors (27059792032) is greater than itself. Its abundance is 8446378304

Bases of 18613413728

• Binary: 10001010101011100100010011101100000₂
• Hexadecimal: 0x455722760
• Base-36: 8JTY1Y8

Squares and roots of 18613413728

• 18613413728 squared (18613413728²) is 346459170609698857984
• 18613413728 cubed (18613413728³) is 6448787882418062853145308004352
• The square root of 18613413728 is 136430.9852196341
• The cube root of 18613413728 is 2650.1798253667

Scales and comparisons

• 18,613,413,728 seconds is equal to 591 years, 44 weeks, 1 day, 42 minutes, 8 seconds.
• To count from 1 to 18,613,413,728 would take you about one thousand, one hundred eighty-three 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 18613413728 cubic inches would be around 220.8 feet tall.

Recreational maths with 18613413728

• 18613413728 backwards is 82731431681
• The number of decimal digits it has is: 11
• The sum of 18613413728's digits is 44
• More coming soon!