138396901797

Names of 138396901797

• Cardinal: 138396901797 can be written as One hundred thirty-eight billion, three hundred ninety-six million, nine hundred one thousand, seven hundred ninety-seven.

Scientific notation

• Scientific notation: 1.38396901797 × 10¹¹

Factors of 138396901797

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1309

Divisors of 138396901797

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 11 19 21 31 33 57 63 77 93 99 133 171 209 217 231 279 341 399 409 589 627 651 693 829 1023 1197 1227 1463 1767 1881 1953 2387 2487 2863 3069 3681 4123 4389 4499 5301 5803 6479 7161 7461 7771 8589 9119 12369 12679 13167 13497 15751 17409 19437 21483 23313 25699 25767 27357 31493 37107 38037 40491 45353 47253 52227 54397 58311 63833 69939 77097 82071 85481 88753 94479 110257 114111 136059 139469 141759 163191 173261 179893 191499 231291 240901 256443 266259 282689 283437 330771 339061 408177 418407 488281 489573 519783 539679 574497 598367 722703 769329 798777 848067 976283 992313 1017183 1212827 1255221 1464843 1559349 1619037 1686307 1795101 1978823 2168109 2373427 2544201 2649911 2928849 3051549 3417967 3638481 3729671 4394529 5058921 5371091 5385303 5936469 6442159 7120281 7949733 8786547 10253901 10510891 10915443 11189013 15176763 16113273 17809407 18549377 19326477 21360843 23849199 26107697 30761703 31532673 33567039 37597637 45095113 48339819 55648131 57979431 70863749 73576237 78323091 94598019 112792911 115619801 135285339 166944393 199706929 212591247 220728711 234969273 338378733 346859403 405856017 496046243 599120787 637773741 662186133 809338607 1040578209 1397948503 1488138729 1797362361 2196776219 2428015821 4193845509 4464416187 6590328657 7284047463 12581536527 15377433533 19770985971 46132300599 138396901797
• Sum of all divisors σ(n): 271804416000
• Sum of proper divisors (its aliquot sum) s(n): 133407514203
• 138396901797 is a deficient number, because the sum of its proper divisors (133407514203) is less than itself. Its deficiency is 4989387594

Bases of 138396901797

• Binary: 10000000111001000110010010000110100101₂
• Hexadecimal: 0x20391921A5
• Base-36: 1RKTXWV9

Squares and roots of 138396901797

• 138396901797 squared (138396901797²) is 19153702427008461829209
• 138396901797 cubed (138396901797³) is 2650813073839650652265060959188573
• The square root of 138396901797 is 372017.3407208327
• The cube root of 138396901797 is 5172.5987356233

Scales and comparisons

• 138,396,901,797 seconds is equal to 4,400 years, 30 weeks, 5 days, 23 hours, 49 minutes, 57 seconds.
• To count from 1 to 138,396,901,797 would take you about eight thousand, eight hundred 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 138396901797 cubic inches would be around 431 feet tall.

Recreational maths with 138396901797

• 138396901797 backwards is 797109693831
• 138396901797 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138396901797's digits is 63
• More coming soon!