72505130918

Names of 72505130918

• Cardinal: 72505130918 can be written as Seventy-two billion, five hundred five million, one hundred thirty thousand, nine hundred eighteen.

Scientific notation

• Scientific notation: 7.2505130918 × 10¹⁰

Factors of 72505130918

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 32

Divisors of 72505130918

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 11 19 22 38 121 209 242 361 418 722 1331 2299 2662 3971 4598 6859 7942 13718 14641 25289 29282 43681 50578 75449 87362 130321 150898 260642 278179 480491 556358 829939 960982 1433531 1659878 2476099 2867062 4952198 5285401 9129329 10570802 15768841 18258658 27237089 31537682 54474178 100422619 173457251 200845238 299607979 346914502 599215958 1908029761 3295687769 3816059522 6591375538 36252565459 72505130918
• Sum of all divisors σ(n): 126278982900
• Sum of proper divisors (its aliquot sum) s(n): 53773851982
• 72505130918 is a deficient number, because the sum of its proper divisors (53773851982) is less than itself. Its deficiency is 18731278936

Bases of 72505130918

• Binary: 1000011100001101001000111111110100110₂
• Hexadecimal: 0x10E1A47FA6
• Base-36: XB3OL2E

Squares and roots of 72505130918

• 72505130918 squared (72505130918²) is 5256994009436319522724
• 72505130918 cubed (72505130918³) is 381159038889322074379182895980632
• The square root of 72505130918 is 269267.7680636879
• The cube root of 72505130918 is 4169.8738221669

Scales and comparisons

• 72,505,130,918 seconds is equal to 2,305 years, 22 weeks, 5 days, 18 hours, 8 minutes, 38 seconds.
• To count from 1 to 72,505,130,918 would take you about four thousand, six hundred ten 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 72505130918 cubic inches would be around 347.5 feet tall.

Recreational maths with 72505130918

• 72505130918 backwards is 81903150527
• The number of decimal digits it has is: 11
• The sum of 72505130918's digits is 41
• More coming soon!