138936798

Names of 138936798

• Cardinal: 138936798 can be written as One hundred thirty-eight million, nine hundred thirty-six thousand, seven hundred ninety-eight.

Scientific notation

• Scientific notation: 1.38936798 × 10⁸

Factors of 138936798

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 737

Divisors of 138936798

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 7 9 11 13 14 18 21 22 26 33 39 42 63 66 77 78 91 99 117 121 126 143 154 182 198 231 234 242 273 286 363 429 462 546 693 701 726 819 847 858 1001 1089 1287 1386 1402 1573 1638 1694 2002 2103 2178 2541 2574 3003 3146 4206 4719 4907 5082 6006 6309 7623 7711 9009 9113 9438 9814 11011 12618 14157 14721 15246 15422 18018 18226 22022 23133 27339 28314 29442 33033 44163 46266 53977 54678 63791 66066 69399 82017 84821 88326 99099 100243 107954 127582 138798 161931 164034 169642 191373 198198 200486 254463 300729 323862 382746 485793 508926 574119 593747 601458 701701 763389 902187 971586 1102673 1148238 1187494 1403402 1526778 1781241 1804374 2105103 2205346 3308019 3562482 4210206 5343723 6315309 6616038 7718711 9924057 10687446 12630618 15437422 19848114 23156133 46312266 69468399 138936798
• Sum of all divisors σ(n): 407822688
• Sum of proper divisors (its aliquot sum) s(n): 268885890
• 138936798 is an abundant number, because the sum of its proper divisors (268885890) is greater than itself. Its abundance is 129949092

Bases of 138936798

• Binary: 1000010010000000000111011110₂
• Hexadecimal: 0x84801DE
• Base-36: 2APWBI

Squares and roots of 138936798

• 138936798 squared (138936798²) is 19303433838492804
• 138936798 cubed (138936798³) is 2681957287925039333801592
• The square root of 138936798 is 11787.1454559617
• The cube root of 138936798 is 517.9316233793

Scales and comparisons

• 138,936,798 seconds is equal to 4 years, 21 weeks, 5 days, 1 hour, 33 minutes, 18 seconds.
• To count from 1 to 138,936,798 would take you about six 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 138936798 cubic inches would be around 43.2 feet tall.

Recreational maths with 138936798

• 138936798 backwards is 897639831
• The number of decimal digits it has is: 9
• The sum of 138936798's digits is 54
• More coming soon!