13021391838

Names of 13021391838

• Cardinal: 13021391838 can be written as Thirteen billion, twenty-one million, three hundred ninety-one thousand, eight hundred thirty-eight.

Scientific notation

• Scientific notation: 1.3021391838 × 10¹⁰

Factors of 13021391838

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 17990

Divisors of 13021391838

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 13 14 21 26 31 39 42 43 62 78 86 91 93 129 182 186 217 258 273 301 403 434 546 559 602 651 806 903 1118 1209 1302 1333 1677 1806 2418 2666 2821 3354 3913 3999 5642 7826 7998 8463 9331 11739 16926 17329 17891 18662 23478 27993 34658 35782 51987 53673 55986 103974 107346 121303 125237 232583 242606 250474 363909 375711 465166 554621 697749 727818 751422 769313 1109242 1395498 1538626 1628081 1663863 2307939 3256162 3327726 3882347 4615878 4884243 5385191 7210073 7764694 9768486 10001069 10770382 11647041 14420146 16155573 20002138 21630219 23294082 23848703 30003207 32311146 43260438 47697406 50470511 60006414 70007483 71546109 100941022 140014966 143092218 151411533 166940921 210022449 302823066 310033139 333881842 420044898 500822763 620066278 930099417 1001645526 1860198834 2170231973 4340463946 6510695919 13021391838
• Sum of all divisors σ(n): 33857961984
• Sum of proper divisors (its aliquot sum) s(n): 20836570146
• 13021391838 is an abundant number, because the sum of its proper divisors (20836570146) is greater than itself. Its abundance is 7815178308

Bases of 13021391838

• Binary: 1100001000001000101010101111011110₂
• Hexadecimal: 0x30822ABDE
• Base-36: 5ZCLM8U

Squares and roots of 13021391838

• 13021391838 squared (13021391838²) is 169556645398733018244
• 13021391838 cubed (13021391838³) is 2207863518473722379303526692472
• The square root of 13021391838 is 114111.3133655029
• The cube root of 13021391838 is 2352.6237083945

Scales and comparisons

• 13,021,391,838 seconds is equal to 414 years, 2 weeks, 13 hours, 17 minutes, 18 seconds.
• To count from 1 to 13,021,391,838 would take you about eight hundred twenty-eight 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 13021391838 cubic inches would be around 196.1 feet tall.

Recreational maths with 13021391838

• 13021391838 backwards is 83819312031
• 13021391838 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13021391838's digits is 39
• More coming soon!