138428718504291656

Names of 138428718504291656

• Cardinal: 138428718504291656 can be written as One hundred thirty-eight quadrillion, four hundred twenty-eight trillion, seven hundred eighteen billion, five hundred four million, two hundred ninety-one thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 1.38428718504291656 × 10¹⁷

Factors of 138428718504291656

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 28390610

Divisors of 138428718504291656

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 7 8 14 28 56 3347 6694 13388 23429 26041 26776 46858 52082 93716 104164 182287 187432 208328 364574 729148 1458296 28361213 56722426 87159227 113444852 174318454 198528491 226889704 348636908 397056982 610114589 697273816 794113964 1220229178 1588227928 2440458356 4880916712 94924979911 189849959822 379699919644 664474859377 738554347733 759399839288 1328949718754 1477108695466 2657899437508 2954217390932 5169880434131 5315798875016 5908434781864 10339760868262 20679521736524 41359043473048 2471941401862351 4943882803724702 9887765607449404 17303589813036457 19775531214898808 34607179626072914 69214359252145828 138428718504291656
• Sum of all divisors σ(n): 296732999608778880
• Sum of proper divisors (its aliquot sum) s(n): 158304281104487224
• 138428718504291656 is an abundant number, because the sum of its proper divisors (158304281104487224) is greater than itself. Its abundance is 19875562600195568

Bases of 138428718504291656

• Binary: 111101011110011000010111110100001001010010010110101001000₂
• Hexadecimal: 0x1EBCC2FA1292D48
• Base-36: 11V0VVD5UXC8

Squares and roots of 138428718504291656

• 138428718504291656 squared (138428718504291656²) is 19162510106740419130664090311222336
• 138428718504291656 cubed (138428718504291656³) is 2652641717401613333885367235955403468225115205628416
• The square root of 138428718504291656 is 372060100.6615620105
• The cube root of 138428718504291656 is 517299.5089510109

Scales and comparisons

• 138,428,718,504,291,656 seconds is equal to 4,401,605,060 years, 15 weeks, 2 days, 19 hours, 40 minutes, 56 seconds.
• To count from 1 to 138,428,718,504,291,656 would take you about thirteen billion, two hundred four million, eight hundred fifteen thousand, one hundred eighty 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 138428718504291656 cubic inches would be around 43108.3 feet tall.

Recreational maths with 138428718504291656

• 138428718504291656 backwards is 656192405817824831
• The number of decimal digits it has is: 18
• The sum of 138428718504291656's digits is 80
• More coming soon!