6438669912

Names of 6438669912

• Cardinal: 6438669912 can be written as Six billion, four hundred thirty-eight million, six hundred sixty-nine thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 6.438669912 × 10⁹

Factors of 6438669912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 329

Divisors of 6438669912

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 131 162 193 216 243 262 324 386 393 486 524 579 648 772 786 972 1048 1158 1179 1544 1572 1737 1944 2316 2358 3144 3474 3537 4632 4716 5211 6948 7074 9432 10422 10611 13896 14148 15633 17161 20844 21222 25283 28296 31266 31833 34322 41688 42444 46899 50566 51483 62532 63666 68644 75849 84888 93798 101132 102966 125064 127332 137288 151698 154449 187596 202264 205932 227547 254664 303396 308898 375192 411864 455094 463347 606792 617796 682641 910188 926694 1235592 1365282 1390041 1820376 1853388 2047923 2730564 2780082 3312073 3706776 4095846 4170123 5461128 5560164 6143769 6624146 8191692 8340246 9936219 11120328 12287538 13248292 16383384 16680492 19872438 24575076 26496584 29808657 33360984 39744876 49150152 59617314 79489752 89425971 119234628 178851942 238469256 268277913 357703884 536555826 715407768 804833739 1073111652 1609667478 2146223304 3219334956 6438669912
• Sum of all divisors σ(n): 18317437320
• Sum of proper divisors (its aliquot sum) s(n): 11878767408
• 6438669912 is an abundant number, because the sum of its proper divisors (11878767408) is greater than itself. Its abundance is 5440097496

Bases of 6438669912

• Binary: 101111111110001100100111001011000₂
• Hexadecimal: 0x17FC64E58
• Base-36: 2YHF1I0

Squares and roots of 6438669912

• 6438669912 squared (6438669912²) is 41456470235694087744
• 6438669912 cubed (6438669912³) is 266924527564287071193580758528
• The square root of 6438669912 is 80241.3229701505
• The cube root of 6438669912 is 1860.3673988083

Scales and comparisons

• 6,438,669,912 seconds is equal to 204 years, 37 weeks, 6 days, 15 hours, 25 minutes, 12 seconds.
• To count from 1 to 6,438,669,912 would take you about four hundred nine 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 6438669912 cubic inches would be around 155 feet tall.

Recreational maths with 6438669912

• 6438669912 backwards is 2199668346
• 6438669912 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6438669912's digits is 54
• More coming soon!