72490944978

Names of 72490944978

• Cardinal: 72490944978 can be written as Seventy-two billion, four hundred ninety million, nine hundred forty-four thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 7.2490944978 × 10¹⁰

Factors of 72490944978

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 974913

Divisors of 72490944978

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 17 18 27 34 51 54 81 102 153 162 243 306 459 486 729 918 1377 1458 2187 2754 4131 4374 8262 12393 24786 37179 74358 974891 1949782 2924673 5849346 8774019 16573147 17548038 26322057 33146294 49719441 52644114 78966171 99438882 149158323 157932342 236898513 298316646 447474969 473797026 710695539 894949938 1342424907 1421391078 2132086617 2684849814 4027274721 4264173234 8054549442 12081824163 24163648326 36245472489 72490944978
• Sum of all divisors σ(n): 172672871040
• Sum of proper divisors (its aliquot sum) s(n): 100181926062
• 72490944978 is an abundant number, because the sum of its proper divisors (100181926062) is greater than itself. Its abundance is 27690981084

Bases of 72490944978

• Binary: 1000011100000110011000000100111010010₂
• Hexadecimal: 0x10E0CC09D2
• Base-36: XAV8J4I

Squares and roots of 72490944978

• 72490944978 squared (72490944978²) is 5254937103803423420484
• 72490944978 cubed (72490944978³) is 380935356454664641702342202129352
• The square root of 72490944978 is 269241.4250779401
• The cube root of 72490944978 is 4169.6018531931

Scales and comparisons

• 72,490,944,978 seconds is equal to 2,304 years, 51 weeks, 2 days, 13 hours, 36 minutes, 18 seconds.
• To count from 1 to 72,490,944,978 would take you about four thousand, six hundred nine 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 72490944978 cubic inches would be around 347.5 feet tall.

Recreational maths with 72490944978

• 72490944978 backwards is 87944909427
• The number of decimal digits it has is: 11
• The sum of 72490944978's digits is 63
• More coming soon!