18297958940

Names of 18297958940

• Cardinal: 18297958940 can be written as Eighteen billion, two hundred ninety-seven million, nine hundred fifty-eight thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.829795894 × 10¹⁰

Factors of 18297958940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 15706

Divisors of 18297958940

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 20 31 61 62 122 124 155 244 305 310 610 620 961 1220 1891 1922 3782 3844 4805 7564 9455 9610 15607 18910 19220 31214 37820 58621 62428 78035 117242 156070 234484 293105 312140 483817 586210 952027 967634 1172420 1904054 1935268 2419085 3808108 4760135 4838170 9520270 9676340 14998327 19040540 29512837 29996654 59025674 59993308 74991635 118051348 147564185 149983270 295128370 299966540 590256740 914897947 1829795894 3659591788 4574489735 9148979470 18297958940
• Sum of all divisors σ(n): 40358729376
• Sum of proper divisors (its aliquot sum) s(n): 22060770436
• 18297958940 is an abundant number, because the sum of its proper divisors (22060770436) is greater than itself. Its abundance is 3762811496

Bases of 18297958940

• Binary: 10001000010101001001011001000011100₂
• Hexadecimal: 0x442A4B21C
• Base-36: 8EM4RH8

Squares and roots of 18297958940

• 18297958940 squared (18297958940²) is 334815301369925923600
• 18297958940 cubed (18297958940³) is 6126436636950630300874376984000
• The square root of 18297958940 is 135269.9483994875
• The cube root of 18297958940 is 2635.1229469739

Scales and comparisons

• 18,297,958,940 seconds is equal to 581 years, 42 weeks, 3 days, 22 hours, 22 minutes, 20 seconds.
• To count from 1 to 18,297,958,940 would take you about one thousand, one hundred sixty-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 18297958940 cubic inches would be around 219.6 feet tall.

Recreational maths with 18297958940

• 18297958940 backwards is 04985979281
• 18297958940 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18297958940's digits is 62
• More coming soon!