13145031972

Names of 13145031972

• Cardinal: 13145031972 can be written as Thirteen billion, one hundred forty-five million, thirty-one thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.3145031972 × 10¹⁰

Factors of 13145031972

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2555

Divisors of 13145031972

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 108 114 171 228 342 513 684 1026 2052 2531 5062 7593 10124 15186 22779 30372 45558 48089 68337 91116 96178 136674 144267 192356 273348 288534 432801 577068 865602 1298403 1731204 2596806 5193612 6405961 12811922 19217883 25623844 38435766 57653649 76871532 115307298 121713259 172960947 230614596 243426518 345921894 365139777 486853036 691843788 730279554 1095419331 1460559108 2190838662 3286257993 4381677324 6572515986 13145031972
• Sum of all divisors σ(n): 35887560800
• Sum of proper divisors (its aliquot sum) s(n): 22742528828
• 13145031972 is an abundant number, because the sum of its proper divisors (22742528828) is greater than itself. Its abundance is 9597496856

Bases of 13145031972

• Binary: 1100001111100000010100010100100100₂
• Hexadecimal: 0x30F814524
• Base-36: 61E7NL0

Squares and roots of 13145031972

• 13145031972 squared (13145031972²) is 172791865544902208784
• 13145031972 cubed (13145031972³) is 2271354597089264736079099242048
• The square root of 13145031972 is 114651.7857340217
• The cube root of 13145031972 is 2360.0464400035

Scales and comparisons

• 13,145,031,972 seconds is equal to 417 years, 50 weeks, 3 days, 13 hours, 46 minutes, 12 seconds.
• To count from 1 to 13,145,031,972 would take you about eight hundred thirty-five 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 13145031972 cubic inches would be around 196.7 feet tall.

Recreational maths with 13145031972

• 13145031972 backwards is 27913054131
• 13145031972 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13145031972's digits is 36
• More coming soon!