138778065738

Names of 138778065738

• Cardinal: 138778065738 can be written as One hundred thirty-eight billion, seven hundred seventy-eight million, sixty-five thousand, seven hundred thirty-eight.

Scientific notation

• Scientific notation: 1.38778065738 × 10¹¹

Factors of 138778065738

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 328

Divisors of 138778065738

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 9 13 18 26 31 39 61 62 67 78 93 117 122 134 151 183 186 201 234 279 302 366 402 403 453 549 558 603 793 806 871 906 961 1098 1206 1209 1359 1586 1742 1891 1922 1963 2077 2379 2418 2613 2718 2883 3627 3782 3926 4087 4154 4681 4758 5226 5673 5766 5889 6231 7137 7254 7839 8174 8649 9211 9362 10117 11346 11778 12261 12462 12493 14043 14274 15678 17019 17298 17667 18422 18693 20234 24522 24583 24986 27001 27633 28086 30351 34038 35334 36783 37386 37479 42129 49166 53131 54002 55266 58621 60702 60853 64387 73566 73749 74958 81003 82899 84258 91053 106262 112437 117242 119743 121706 126697 128774 131521 145111 147498 159393 162006 165798 175863 182106 182559 193161 221247 224874 239486 243009 253394 263042 285541 290222 313627 318786 351726 359229 365118 380091 386322 394563 435333 442494 478179 486018 527589 547677 571082 579483 617137 627254 718458 760182 762073 789126 837031 856623 870666 940881 956358 1055178 1077687 1095354 1140273 1158966 1183689 1234274 1305999 1524146 1647061 1674062 1713246 1851411 1881762 1886443 2155374 2280546 2286219 2367378 2511093 2569869 2611998 2822643 3294122 3702822 3712033 3772886 3927607 4077151 4572438 4941183 5022186 5139738 5554233 5645286 5659329 6858657 7424066 7533279 7855214 8022781 8154302 8851771 9722437 9882366 11108466 11136099 11318658 11782821 12231453 13717314 14823549 15066558 16045562 16977987 17703542 19131247 19444874 22272198 23565642 24068343 24462906 26555313 29167311 29647098 33408297 33955974 35348463 36694359 38262494 48136686 51058891 53110626 57393741 58334622 66816594 70696926 72205029 73388718 79665939 87501933 102117782 114787482 115073023 126391681 144410058 153176673 159331878 172181223 175003866 230146046 248706211 252783362 306353346 344362446 345219069 379175043 459530019 497412422 593068657 690438138 746118633 758350086 919060038 1035657207 1137525129 1186137314 1492237266 1779205971 2071314414 2238355899 2275050258 3558411942 4476711798 5337617913 7709892541 10675235826 15419785082 23129677623 46259355246 69389032869 138778065738
• Sum of all divisors σ(n): 347445012096
• Sum of proper divisors (its aliquot sum) s(n): 208666946358
• 138778065738 is an abundant number, because the sum of its proper divisors (208666946358) is greater than itself. Its abundance is 69888880620

Bases of 138778065738

• Binary: 10000001001111110100010011101101001010₂
• Hexadecimal: 0x204FD13B4A
• Base-36: 1RR4VKUI

Squares and roots of 138778065738

• 138778065738 squared (138778065738²) is 19259351529980649484644
• 138778065738 cubed (138778065738³) is 2672775552698905452047860853527272
• The square root of 138778065738 is 372529.2817189005
• The cube root of 138778065738 is 5177.3430635481

Scales and comparisons

• 138,778,065,738 seconds is equal to 4,412 years, 37 weeks, 14 hours, 42 minutes, 18 seconds.
• To count from 1 to 138,778,065,738 would take you about eight thousand, eight hundred twenty-five 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 138778065738 cubic inches would be around 431.4 feet tall.

Recreational maths with 138778065738

• 138778065738 backwards is 837560877831
• The number of decimal digits it has is: 12
• The sum of 138778065738's digits is 63
• More coming soon!