138392408

Names of 138392408

• Cardinal: 138392408 can be written as One hundred thirty-eight million, three hundred ninety-two thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.38392408 × 10⁸

Factors of 138392408

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 237

Divisors of 138392408

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 11 14 22 28 29 44 56 58 61 77 88 116 122 127 154 203 232 244 254 308 319 406 427 488 508 616 638 671 812 854 889 1016 1276 1342 1397 1624 1708 1769 1778 2233 2552 2684 2794 3416 3538 3556 3683 4466 4697 5368 5588 7076 7112 7366 7747 8932 9394 9779 11176 12383 14152 14732 15494 17864 18788 19459 19558 24766 25781 29464 30988 37576 38918 39116 40513 49532 51562 54229 61976 77836 78232 81026 85217 99064 103124 108458 136213 155672 162052 170434 206248 216916 224663 272426 283591 324104 340868 433832 449326 544852 567182 596519 681736 898652 1089704 1134364 1193038 1572641 1797304 2268728 2386076 2471293 3145282 4772152 4942586 6290564 9885172 12581128 17299051 19770344 34598102 69196204 138392408
• Sum of all divisors σ(n): 342835200
• Sum of proper divisors (its aliquot sum) s(n): 204442792
• 138392408 is an abundant number, because the sum of its proper divisors (204442792) is greater than itself. Its abundance is 66050384

Bases of 138392408

• Binary: 1000001111111011001101011000₂
• Hexadecimal: 0x83FB358
• Base-36: 2AE89K

Squares and roots of 138392408

• 138392408 squared (138392408²) is 19152458592038464
• 138392408 cubed (138392408³) is 2650554863672492661581312
• The square root of 138392408 is 11764.0302617767
• The cube root of 138392408 is 517.2542749639

Scales and comparisons

• 138,392,408 seconds is equal to 4 years, 20 weeks, 5 days, 18 hours, 20 minutes, 8 seconds.
• To count from 1 to 138,392,408 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 138392408 cubic inches would be around 43.1 feet tall.

Recreational maths with 138392408

• 138392408 backwards is 804293831
• The number of decimal digits it has is: 9
• The sum of 138392408's digits is 38
• More coming soon!