138906895725

Names of 138906895725

• Cardinal: 138906895725 can be written as One hundred thirty-eight billion, nine hundred six million, eight hundred ninety-five thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 1.38906895725 × 10¹¹

Factors of 138906895725

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 569

Divisors of 138906895725

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 9 13 15 25 37 39 45 53 61 65 75 111 117 159 183 185 195 225 265 305 325 333 397 477 481 549 555 585 689 793 795 915 925 975 1191 1325 1443 1525 1665 1961 1985 2067 2257 2379 2385 2405 2745 2775 2925 3233 3445 3573 3965 3975 4329 4575 5161 5883 5955 6201 6771 7137 7215 8325 9699 9805 9925 10335 11285 11895 11925 12025 13725 14689 15483 16165 17225 17649 17865 19825 20313 21041 21645 24217 25493 25805 29097 29341 29415 29775 31005 33855 35685 36075 42029 44067 46449 48495 49025 51675 56425 59475 63123 72651 73445 76479 77415 80825 88023 88245 89325 101565 105205 108225 119621 121085 126087 127465 129025 132201 145485 146705 147075 155025 169275 178425 189369 190957 210145 217953 220335 229437 232245 242475 264069 273533 314821 315615 358863 363255 367225 378261 382395 387075 440115 441225 507825 526025 572871 598105 605425 630435 637325 661005 727425 733525 778517 820599 896029 944463 946845 954785 1050725 1076589 1089765 1101675 1147185 1161225 1283501 1320345 1367665 1555073 1574105 1578075 1718613 1794315 1816275 1891305 1911975 2200575 2335551 2461797 2688087 2833389 2864355 2990525 3152175 3305025 3850503 3892585 4102995 4480145 4665219 4722315 4734225 4773925 5382945 5448825 5735925 6417505 6601725 6838325 7006653 7775365 7870525 8064261 8593065 8971575 9456525 10120721 11551509 11648377 11677755 12308985 13440435 13995657 14166945 14321775 16685513 19252515 19462925 20514975 22400725 23326095 23611575 26914725 30362163 32087525 34945131 35033265 38876825 40321305 42965325 47489537 50056539 50603605 57757545 58241885 58388775 61544925 67202175 69978285 70834725 83427565 91086489 96262575 104835393 116630475 142468611 150169617 151810815 174725655 175166325 201606525 237447685 250282695 253018025 288787725 291209425 349891425 417137825 427405833 455432445 524176965 617363981 712343055 750848085 759054075 873628275 1187238425 1251413475 1852091943 2137029165 2277162225 2620884825 3086819905 3561715275 3754240425 5556275829 9260459715 10685145825 15434099525 27781379145 46302298575 138906895725
• Sum of all divisors σ(n): 285683527584
• Sum of proper divisors (its aliquot sum) s(n): 146776631859
• 138906895725 is an abundant number, because the sum of its proper divisors (146776631859) is greater than itself. Its abundance is 7869736134

Bases of 138906895725

• Binary: 10000001010111011111110000010101101101₂
• Hexadecimal: 0x20577F056D
• Base-36: 1RT9KUP9

Squares and roots of 138906895725

• 138906895725 squared (138906895725²) is 19295125679956023275625
• 138906895725 cubed (138906895725³) is 2680226010826421047732914809203125
• The square root of 138906895725 is 372702.1541727389
• The cube root of 138906895725 is 5178.9446392911

Scales and comparisons

• 138,906,895,725 seconds is equal to 4,416 years, 42 weeks, 16 hours, 48 minutes, 45 seconds.
• To count from 1 to 138,906,895,725 would take you about eight thousand, eight hundred thirty-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 138906895725 cubic inches would be around 431.6 feet tall.

Recreational maths with 138906895725

• 138906895725 backwards is 527598609831
• The number of decimal digits it has is: 12
• The sum of 138906895725's digits is 63
• More coming soon!