155485140642

Names of 155485140642

• Cardinal: 155485140642 can be written as One hundred fifty-five billion, four hundred eighty-five million, one hundred forty thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 1.55485140642 × 10¹¹

Factors of 155485140642

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3314

Divisors of 155485140642

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 6 9 13 18 26 39 78 117 127 169 234 254 338 381 507 762 1014 1143 1521 1651 2286 3042 3169 3302 4953 6338 9507 9906 14859 16129 19014 21463 28521 29718 32258 41197 42926 48387 57042 64389 82394 96774 123591 128778 145161 193167 209677 247182 290322 370773 386334 402463 419354 535561 629031 741546 804926 1071122 1207389 1258062 1606683 1887093 2414778 2725801 3213366 3622167 3774186 4820049 5232019 5451602 7244334 8177403 9640098 10464038 15696057 16354806 24532209 31392114 47088171 49064418 51112801 68016247 94176342 102225602 136032494 153338403 204048741 306676806 408097482 460015209 612146223 664466413 920030418 1224292446 1328932826 1993399239 3986798478 5980197717 8638063369 11960395434 17276126738 25914190107 51828380214 77742570321 155485140642
• Sum of all divisors σ(n): 367803082530
• Sum of proper divisors (its aliquot sum) s(n): 212317941888
• 155485140642 is an abundant number, because the sum of its proper divisors (212317941888) is greater than itself. Its abundance is 56832801246

Bases of 155485140642

• Binary: 10010000110011101000101111011010100010₂
• Hexadecimal: 0x2433A2F6A2
• Base-36: 1ZFFU6CI

Squares and roots of 155485140642

• 155485140642 squared (155485140642²) is 24175628960462520172164
• 155485140642 cubed (155485140642³) is 3758951069026323206338681593489288
• The square root of 155485140642 is 394316.0415732537
• The cube root of 155485140642 is 5377.2838682815

Scales and comparisons

• 155,485,140,642 seconds is equal to 4,943 years, 49 weeks, 1 day, 12 hours, 50 minutes, 42 seconds.
• To count from 1 to 155,485,140,642 would take you about nine thousand, eight hundred eighty-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 155485140642 cubic inches would be around 448.1 feet tall.

Recreational maths with 155485140642

• 155485140642 backwards is 246041584551
• The number of decimal digits it has is: 12
• The sum of 155485140642's digits is 45
• More coming soon!