18523400149821

Names of 18523400149821

• Cardinal: 18523400149821 can be written as Eighteen trillion, five hundred twenty-three billion, four hundred million, one hundred forty-nine thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.8523400149821 × 10¹³

Factors of 18523400149821

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 9917870

Divisors of 18523400149821

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 19 21 31 57 93 133 151 217 399 453 589 651 1057 1767 2869 3171 4123 4681 8607 12369 14043 20083 32767 60249 88939 98301 266817 622573 1867719 9917659 29752977 69423613 188435521 208270839 307447429 565306563 922342287 1319048647 1497566509 2152132003 3957145941 4492699527 5841501151 6456396009 10482965563 17524503453 28453763671 31448896689 40890508057 46424561779 85361291013 122671524171 139273685337 199176345697 324971932453 597529037091 882066673801 974915797359 2646200021403 6174466716607 18523400149821
• Sum of all divisors σ(n): 30873278873600
• Sum of proper divisors (its aliquot sum) s(n): 12349878723779
• 18523400149821 is a deficient number, because the sum of its proper divisors (12349878723779) is less than itself. Its deficiency is 6173521426042

Bases of 18523400149821

• Binary: 100001101100011010000101011111001101100111101₂
• Hexadecimal: 0x10D8D0AF9B3D
• Base-36: 6KDJ66T6L

Squares and roots of 18523400149821

• 18523400149821 squared (18523400149821²) is 343116353110388645246332041
• 18523400149821 cubed (18523400149821³) is 6355681506611008170707444147710112714661
• The square root of 18523400149821 is 4303881.9860471313
• The cube root of 18523400149821 is 26459.0087272267

Scales and comparisons

• 18,523,400,149,821 seconds is equal to 588,986 years, 43 weeks, 10 hours, 30 minutes, 21 seconds.
• To count from 1 to 18,523,400,149,821 would take you about one million, four hundred seventy-two thousand, four hundred sixty-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 18523400149821 cubic inches would be around 2204.9 feet tall.

Recreational maths with 18523400149821

• 18523400149821 backwards is 12894100432581
• The number of decimal digits it has is: 14
• The sum of 18523400149821's digits is 48
• More coming soon!