138421823864

Names of 138421823864

• Cardinal: 138421823864 can be written as One hundred thirty-eight billion, four hundred twenty-one million, eight hundred twenty-three thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.38421823864 × 10¹¹

Factors of 138421823864

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1137

Divisors of 138421823864

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 23 46 73 92 97 131 146 184 194 262 292 388 524 584 776 811 1048 1622 1679 2231 3013 3244 3358 4462 6026 6488 6716 7081 8924 9563 12052 12707 13432 14162 17848 18653 19126 24104 25414 28324 37306 38252 50828 56648 59203 74612 76504 78667 101656 106241 118406 149224 157334 162863 212482 219949 236812 292261 314668 325726 424964 439898 473624 584522 629336 651452 849928 879796 927611 1169044 1302904 1361669 1759592 1809341 1855222 2338088 2443543 2723338 3618682 3710444 4887086 5446676 5742691 7237364 7420888 7755593 9774172 10305377 10893352 11485382 14474728 15511186 19548344 20610754 21335053 22970764 31022372 41221508 42670106 45941528 62044744 82443016 85340212 132081893 170680424 178378639 237023671 264163786 356757278 474047342 528327572 713514556 752292521 948094684 1056655144 1427029112 1504585042 1896189368 3009170084 6018340168 17302727983 34605455966 69210911932 138421823864
• Sum of all divisors σ(n): 279827412480
• Sum of proper divisors (its aliquot sum) s(n): 141405588616
• 138421823864 is an abundant number, because the sum of its proper divisors (141405588616) is greater than itself. Its abundance is 2983764752

Bases of 138421823864

• Binary: 10000000111010100101010110100101111000₂
• Hexadecimal: 0x203A956978
• Base-36: 1RL8S2UW

Squares and roots of 138421823864

• 138421823864 squared (138421823864²) is 19160601321836239890496
• 138421823864 cubed (138421823864³) is 2652245381299541575174287959596544
• The square root of 138421823864 is 372050.8350534911
• The cube root of 138421823864 is 5172.9092052781

Scales and comparisons

• 138,421,823,864 seconds is equal to 4,401 years, 20 weeks, 10 hours, 37 minutes, 44 seconds.
• To count from 1 to 138,421,823,864 would take you about eight thousand, eight hundred two 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 138421823864 cubic inches would be around 431.1 feet tall.

Recreational maths with 138421823864

• 138421823864 backwards is 468328124831
• The number of decimal digits it has is: 12
• The sum of 138421823864's digits is 50
• More coming soon!