138215966464

Names of 138215966464

• Cardinal: 138215966464 can be written as One hundred thirty-eight billion, two hundred fifteen million, nine hundred sixty-six thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.38215966464 × 10¹¹

Factors of 138215966464

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 527

Divisors of 138215966464

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 8 16 32 64 83 128 149 166 256 293 298 332 586 596 664 1172 1192 1328 2344 2384 2656 4688 4768 5312 9376 9536 10624 12367 18752 19072 21248 22201 24319 24734 37504 38144 43657 44402 48638 49468 75008 87314 88804 97276 98936 174628 177608 194552 197872 349256 355216 389104 395744 698512 710432 778208 791488 1397024 1420864 1556416 1582976 1842683 2794048 2841728 3112832 3165952 3623531 3685366 5588096 5683456 6225664 6504893 7247062 7370732 11176192 13009786 14494124 14741464 26019572 28988248 29482928 52039144 57976496 58965856 104078288 115952992 117931712 208156576 231905984 235863424 416313152 463811968 471726848 539906119 832626304 927623936 1079812238 1665252608 2159624476 4319248952 8638497904 17276995808 34553991616 69107983232 138215966464
• Sum of all divisors σ(n): 282061931256
• Sum of proper divisors (its aliquot sum) s(n): 143845964792
• 138215966464 is an abundant number, because the sum of its proper divisors (143845964792) is greater than itself. Its abundance is 5629998328

Bases of 138215966464

• Binary: 10000000101110010100000100011100000000₂
• Hexadecimal: 0x202E504700
• Base-36: 1RHU7U9S

Squares and roots of 138215966464

• 138215966464 squared (138215966464²) is 19103653385577572663296
• 138215966464 cubed (138215966464³) is 2640429915680869844500643099705344
• The square root of 138215966464 is 371774.0798710961
• The cube root of 138215966464 is 5170.3435935499

Scales and comparisons

• 138,215,966,464 seconds is equal to 4,394 years, 43 weeks, 4 days, 20 hours, 1 minute, 4 seconds.
• To count from 1 to 138,215,966,464 would take you about eight thousand, seven hundred eighty-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 138215966464 cubic inches would be around 430.9 feet tall.

Recreational maths with 138215966464

• 138215966464 backwards is 464669512831
• The number of decimal digits it has is: 12
• The sum of 138215966464's digits is 55
• More coming soon!