138491709734868

Names of 138491709734868

• Cardinal: 138491709734868 can be written as One hundred thirty-eight trillion, four hundred ninety-one billion, seven hundred nine million, seven hundred thirty-four thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 1.38491709734868 × 10¹⁴

Factors of 138491709734868

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 32164

Divisors of 138491709734868

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 67 84 113 134 201 226 268 339 402 452 469 678 791 804 938 1356 1407 1582 1876 2373 2814 3164 4746 5628 7571 9492 9839 15142 19678 22133 22713 29517 30284 39356 44266 45426 52997 59034 66399 68873 88532 90852 105994 118068 132798 137746 154931 158991 206619 211988 265596 275492 309862 317982 413238 464793 619724 635964 659213 826476 929586 1111807 1318426 1482911 1859172 1977639 2223614 2501029 2636852 2965822 3335421 3955278 4447228 4448733 4614491 5002058 5931644 6670842 7503087 7782649 7910556 8897466 9228982 10004116 10380377 13341684 13843473 15006174 15565298 17507203 17794932 18457964 20760754 23347947 27686946 30012348 31130596 31141131 35014406 41521508 46695894 52521609 55373892 62282262 70028812 74491069 93391788 105043218 124564524 148982138 167568943 210086436 217766587 223473207 297964276 335137886 435533174 446946414 502706829 521437483 653299761 670275772 871066348 893892828 1005413658 1042874966 1172982601 1306599522 1524366109 1564312449 2010827316 2085749932 2345965202 2613199044 3048732218 3128624898 3518947803 4573098327 4691930404 6097464436 6257249796 7037895606 9146196654 14075791212 14590361329 18292393308 24607624331 29180722658 43771083987 49215248662 58361445316 73822872993 87542167974 98430497324 102132529303 147645745986 172253370317 175084335948 204265058606 295291491972 306397587909 344506740634 408530117212 516760110951 612795175818 689013481268 1033520221902 1225590351636 1648710830177 2067040443804 3297421660354 4946132490531 6594843320708 9892264981062 11540975811239 19784529962124 23081951622478 34622927433717 46163903244956 69245854867434 138491709734868
• Sum of all divisors σ(n): 378195873914880
• Sum of proper divisors (its aliquot sum) s(n): 239704164180012
• 138491709734868 is an abundant number, because the sum of its proper divisors (239704164180012) is greater than itself. Its abundance is 101212454445144

Bases of 138491709734868

• Binary: 11111011111010100011101001010011011111111010100₂
• Hexadecimal: 0x7DF51D29BFD4
• Base-36: 1D3A7O853O

Squares and roots of 138491709734868

• 138491709734868 squared (138491709734868²) is 19179953665286931958854977424
• 138491709734868 cubed (138491709734868³) is 2656264575741135372450620621346017165620032
• The square root of 138491709734868 is 11768250.0710542347
• The cube root of 138491709734868 is 51737.7961822289

Scales and comparisons

• 138,491,709,734,868 seconds is equal to 4,403,607 years, 51 weeks, 2 days, 2 hours, 47 minutes, 48 seconds.
• To count from 1 to 138,491,709,734,868 would take you about eleven million, nine thousand and nineteen 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 138491709734868 cubic inches would be around 4311.5 feet tall.

Recreational maths with 138491709734868

• 138491709734868 backwards is 868437907194831
• The number of decimal digits it has is: 15
• The sum of 138491709734868's digits is 78
• More coming soon!