138268615212

Names of 138268615212

• Cardinal: 138268615212 can be written as One hundred thirty-eight billion, two hundred sixty-eight million, six hundred fifteen thousand, two hundred twelve.

Scientific notation

• Scientific notation: 1.38268615212 × 10¹¹

Factors of 138268615212

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 98383

Divisors of 138268615212

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 431 468 546 819 862 1092 1293 1638 1724 2586 3017 3276 3879 5172 5603 6034 7758 9051 11206 12068 15516 16809 18102 22412 27153 33618 36204 39221 50427 54306 67236 78442 97927 100854 108612 117663 156884 195854 201708 235326 293781 352989 391708 470652 587562 685489 705978 881343 1175124 1273051 1370978 1411956 1762686 2056467 2546102 2741956 3525372 3819153 4112934 5092204 6169401 7638306 8225868 8911357 11457459 12338802 15276612 17822714 22914918 24677604 26734071 35645428 42206537 45829836 53468142 80202213 84413074 106936284 126619611 160404426 168826148 253239222 295445759 320808852 379858833 506478444 548684981 590891518 759717666 886337277 1097369962 1181783036 1519435332 1646054943 1772674554 2194739924 2659011831 3292109886 3545349108 3840794867 4938164829 5318023662 6584219772 7681589734 9876329658 10636047324 11522384601 15363179468 19752659316 23044769202 34567153803 46089538404 69134307606 138268615212
• Sum of all divisors σ(n): 431171500032
• Sum of proper divisors (its aliquot sum) s(n): 292902884820
• 138268615212 is an abundant number, because the sum of its proper divisors (292902884820) is greater than itself. Its abundance is 154634269608

Bases of 138268615212

• Binary: 10000000110001011100111010001000101100₂
• Hexadecimal: 0x203173A22C
• Base-36: 1RIPKAB0

Squares and roots of 138268615212

• 138268615212 squared (138268615212²) is 19118209952644117804944
• 138268615212 cubed (138268615212³) is 2643448415484378266747000007208128
• The square root of 138268615212 is 371844.8805779097
• The cube root of 138268615212 is 5171.0000000125

Scales and comparisons

• 138,268,615,212 seconds is equal to 4,396 years, 26 weeks, 5 days, 4 hours, 40 minutes, 12 seconds.
• To count from 1 to 138,268,615,212 would take you about eight thousand, seven hundred ninety-three 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 138268615212 cubic inches would be around 430.9 feet tall.

Recreational maths with 138268615212

• 138268615212 backwards is 212516862831
• The number of decimal digits it has is: 12
• The sum of 138268615212's digits is 45
• More coming soon!