138867938028

Names of 138867938028

• Cardinal: 138867938028 can be written as One hundred thirty-eight billion, eight hundred sixty-seven million, nine hundred thirty-eight thousand and twenty-eight.

Scientific notation

• Scientific notation: 1.38867938028 × 10¹¹

Factors of 138867938028

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5492

Divisors of 138867938028

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 27 36 46 54 69 81 92 108 138 162 207 243 276 324 414 486 621 828 972 1242 1613 1863 2484 3226 3726 3851 4839 5589 6452 7452 7702 9678 11178 11553 14517 15404 19356 22356 23106 29034 34659 37099 43551 46212 58068 69318 74198 87102 88573 103977 111297 130653 138636 148396 174204 177146 207954 222594 261306 265719 311931 333891 354292 391959 415908 445188 522612 531438 623862 667782 783918 797157 935793 1001673 1062876 1247724 1335564 1567836 1594314 1871586 2003346 2391471 3005019 3188628 3743172 4006692 4782942 6010038 6211663 7174413 9015057 9565884 12020076 12423326 14348826 18030114 18634989 21523239 24846652 28697652 36060228 37269978 43046478 55904967 74539956 86092956 111809934 142868249 167714901 223619868 285736498 335429802 428604747 503144703 571472996 670859604 857209494 1006289406 1285814241 1509434109 1714418988 2012578812 2571628482 3018868218 3857442723 5143256964 6037736436 7714885446 11572328169 15429770892 23144656338 34716984507 46289312676 69433969014 138867938028
• Sum of all divisors σ(n): 380189811456
• Sum of proper divisors (its aliquot sum) s(n): 241321873428
• 138867938028 is an abundant number, because the sum of its proper divisors (241321873428) is greater than itself. Its abundance is 102453935400

Bases of 138867938028

• Binary: 10000001010101001011001001001011101100₂
• Hexadecimal: 0x20552C92EC
• Base-36: 1RSMDUR0

Squares and roots of 138867938028

• 138867938028 squared (138867938028²) is 19284304212148448528784
• 138867938028 cubed (138867938028³) is 2677971562245730115031524286197952
• The square root of 138867938028 is 372649.8866603879
• The cube root of 138867938028 is 5178.4604333781

Scales and comparisons

• 138,867,938,028 seconds is equal to 4,415 years, 29 weeks, 4 days, 19 hours, 13 minutes, 48 seconds.
• To count from 1 to 138,867,938,028 would take you about eight thousand, eight hundred thirty-one 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 138867938028 cubic inches would be around 431.5 feet tall.

Recreational maths with 138867938028

• 138867938028 backwards is 820839768831
• The number of decimal digits it has is: 12
• The sum of 138867938028's digits is 63
• More coming soon!