13687915545850780

Names of 13687915545850780

• Cardinal: 13687915545850780 can be written as Thirteen quadrillion, six hundred eighty-seven trillion, nine hundred fifteen billion, five hundred forty-five million, eight hundred fifty thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 1.368791554585078 × 10¹⁶

Factors of 13687915545850780

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1698252549164

Divisors of 13687915545850780

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 13 20 26 31 52 62 65 124 130 155 260 310 403 620 806 1612 2015 4030 8060 1698252549113 3396505098226 6793010196452 8491262745565 16982525491130 22077283138469 33965050982260 44154566276938 52645829022503 88309132553876 105291658045006 110386415692345 210583316090012 220772831384690 263229145112515 441545662769380 526458290225030 684395777292539 1052916580450060 1368791554585078 2737583109170156 3421978886462695 6843957772925390 13687915545850780
• Sum of all divisors σ(n): 31954319964129024
• Sum of proper divisors (its aliquot sum) s(n): 18266404418278244
• 13687915545850780 is an abundant number, because the sum of its proper divisors (18266404418278244) is greater than itself. Its abundance is 4578488872427464

Bases of 13687915545850780

• Binary: 110000101000010001011000101111110100110111001110011100₂
• Hexadecimal: 0x30A1162FD3739C
• Base-36: 3QRYLLCHR4S

Squares and roots of 13687915545850780

• 13687915545850780 squared (13687915545850780²) is 187359031990343456600474026608400
• 13687915545850780 cubed (13687915545850780³) is 2564554606636175806727405689188413279935894552000
• The square root of 13687915545850780 is 116995365.4887695969
• The cube root of 13687915545850780 is 239209.8758441639

Scales and comparisons

• 13,687,915,545,850,780 seconds is equal to 435,233,374 years, 44 weeks, 3 days, 8 hours, 19 minutes, 40 seconds.
• To count from 1 to 13,687,915,545,850,780 would take you about one billion, three hundred five million, seven hundred thousand, one hundred twenty-four 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 13687915545850780 cubic inches would be around 19934.2 feet tall.

Recreational maths with 13687915545850780

• 13687915545850780 backwards is 08705854551978631
• The number of decimal digits it has is: 17
• The sum of 13687915545850780's digits is 82
• More coming soon!