72340129155

Names of 72340129155

• Cardinal: 72340129155 can be written as Seventy-two billion, three hundred forty million, one hundred twenty-nine thousand, one hundred fifty-five.

Scientific notation

• Scientific notation: 7.2340129155 × 10¹⁰

Factors of 72340129155

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2345

Divisors of 72340129155

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 15 17 21 35 43 51 85 105 119 129 215 255 301 357 547 595 645 731 903 1505 1641 1723 1785 2193 2735 3655 3829 4515 5117 5169 8205 8615 9299 10965 11487 12061 15351 19145 23521 25585 25845 27897 29291 36183 46495 57435 60305 65093 70563 74089 76755 87873 117605 139485 146455 164647 180915 195279 205037 222267 325465 352815 370445 399857 439365 493941 518623 615111 823235 942481 976395 1025185 1111335 1199571 1259513 1555869 1999285 2469705 2593115 2798999 2827443 3075555 3778539 4712405 5997855 6297565 6597367 7779345 8396997 8816591 13994995 14137215 16022177 18892695 19792101 26449773 32986835 40526683 41984985 44082955 48066531 80110885 98960505 112155239 121580049 132248865 202633415 240332655 283686781 336465717 560776195 607900245 688953611 851060343 1418433905 1682328585 2066860833 3444768055 4255301715 4822675277 10334304165 14468025831 24113376385 72340129155
• Sum of all divisors σ(n): 143662768128
• Sum of proper divisors (its aliquot sum) s(n): 71322638973
• 72340129155 is a deficient number, because the sum of its proper divisors (71322638973) is less than itself. Its deficiency is 1017490182

Bases of 72340129155

• Binary: 1000011010111110011101100010110000011₂
• Hexadecimal: 0x10D7CEC583
• Base-36: X8DG0W3

Squares and roots of 72340129155

• 72340129155 squared (72340129155²) is 5233094286162081014025
• 72340129155 cubed (72340129155³) is 378562716541257469818141866398875
• The square root of 72340129155 is 268961.2038101407
• The cube root of 72340129155 is 4166.7082571387

Scales and comparisons

• 72,340,129,155 seconds is equal to 2,300 years, 10 weeks, 19 minutes, 15 seconds.
• To count from 1 to 72,340,129,155 would take you about four thousand, six hundred 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 72340129155 cubic inches would be around 347.2 feet tall.

Recreational maths with 72340129155

• 72340129155 backwards is 55192104327
• The number of decimal digits it has is: 11
• The sum of 72340129155's digits is 39
• More coming soon!