138630660

Names of 138630660

• Cardinal: 138630660 can be written as One hundred thirty-eight million, six hundred thirty thousand, six hundred sixty.

Scientific notation

• Scientific notation: 1.3863066 × 10⁸

Factors of 138630660

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 280

Divisors of 138630660

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 23 28 30 35 42 46 60 69 70 84 92 105 113 115 127 138 140 161 210 226 230 254 276 322 339 345 381 420 452 460 483 508 565 635 644 678 690 762 791 805 889 966 1130 1270 1356 1380 1524 1582 1610 1695 1778 1905 1932 2260 2373 2415 2540 2599 2667 2921 3164 3220 3390 3556 3810 3955 4445 4746 4830 5198 5334 5842 6780 7620 7797 7910 8763 8890 9492 9660 10396 10668 11684 11865 12995 13335 14351 14605 15594 15820 17526 17780 18193 20447 23730 25990 26670 28702 29210 31188 35052 36386 38985 40894 43053 43815 47460 51980 53340 54579 57404 58420 61341 71755 72772 77970 81788 86106 87630 90965 100457 102235 109158 122682 143510 155940 172212 175260 181930 200914 204470 215265 218316 245364 272895 287020 301371 306705 330073 363860 401828 408940 430530 502285 545790 602742 613410 660146 861060 990219 1004570 1091580 1205484 1226820 1320292 1506855 1650365 1980438 2009140 2310511 3013710 3300730 3960876 4621022 4951095 6027420 6601460 6931533 9242044 9902190 11552555 13863066 19804380 23105110 27726132 34657665 46210220 69315330 138630660
• Sum of all divisors σ(n): 470679552
• Sum of proper divisors (its aliquot sum) s(n): 332048892
• 138630660 is an abundant number, because the sum of its proper divisors (332048892) is greater than itself. Its abundance is 193418232

Bases of 138630660

• Binary: 1000010000110101011000000100₂
• Hexadecimal: 0x8435604
• Base-36: 2AJC3O

Squares and roots of 138630660

• 138630660 squared (138630660²) is 19218459892035600
• 138630660 cubed (138630660³) is 2664267779016423971496000
• The square root of 138630660 is 11774.1521987785
• The cube root of 138630660 is 517.5509343317

Scales and comparisons

• 138,630,660 seconds is equal to 4 years, 21 weeks, 1 day, 12 hours, 31 minutes.
• To count from 1 to 138,630,660 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 138630660 cubic inches would be around 43.1 feet tall.

Recreational maths with 138630660

• 138630660 backwards is 066036831
• The number of decimal digits it has is: 9
• The sum of 138630660's digits is 33
• More coming soon!