18298274920

Names of 18298274920

• Cardinal: 18298274920 can be written as Eighteen billion, two hundred ninety-eight million, two hundred seventy-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.829827492 × 10¹⁰

Factors of 18298274920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8934

Divisors of 18298274920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 61 122 244 305 488 610 947 1220 1894 2440 3788 4735 7576 7919 9470 15838 18940 31676 37880 39595 57767 63352 79190 115534 158380 231068 288835 316760 462136 483059 577670 966118 1155340 1932236 2310680 2415295 3864472 4830590 7499293 9661180 14998586 19322360 29997172 37496465 59994344 74992930 149985860 299971720 457456873 914913746 1829827492 2287284365 3659654984 4574568730 9149137460 18298274920
• Sum of all divisors σ(n): 41895532800
• Sum of proper divisors (its aliquot sum) s(n): 23597257880
• 18298274920 is an abundant number, because the sum of its proper divisors (23597257880) is greater than itself. Its abundance is 5298982960

Bases of 18298274920

• Binary: 10001000010101010011000010001101000₂
• Hexadecimal: 0x442A98468
• Base-36: 8EMBJAG

Squares and roots of 18298274920

• 18298274920 squared (18298274920²) is 334826865047901006400
• 18298274920 cubed (18298274920³) is 6126754027248231584051879488000
• The square root of 18298274920 is 135271.1163552665
• The cube root of 18298274920 is 2635.1381151747

Scales and comparisons

• 18,298,274,920 seconds is equal to 581 years, 43 weeks, 14 hours, 8 minutes, 40 seconds.
• To count from 1 to 18,298,274,920 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 18298274920 cubic inches would be around 219.6 feet tall.

Recreational maths with 18298274920

• 18298274920 backwards is 02947289281
• The number of decimal digits it has is: 11
• The sum of 18298274920's digits is 52
• More coming soon!