138615887358

Names of 138615887358

• Cardinal: 138615887358 can be written as One hundred thirty-eight billion, six hundred fifteen million, eight hundred eighty-seven thousand, three hundred fifty-eight.

Scientific notation

• Scientific notation: 1.38615887358 × 10¹¹

Factors of 138615887358

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5336772

Divisors of 138615887358

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 37 39 54 74 78 111 117 222 234 333 351 481 666 702 962 999 1443 1998 2886 4329 8658 12987 25974 5336717 10673434 16010151 32020302 48030453 69377321 96060906 138754642 144091359 197458529 208131963 288182718 394917058 416263926 592375587 624395889 1184751174 1248791778 1777126761 1873187667 2566960877 3554253522 3746375334 5133921754 5331380283 7700882631 10662760566 15401765262 23102647893 46205295786 69307943679 138615887358
• Sum of all divisors σ(n): 340696077120
• Sum of proper divisors (its aliquot sum) s(n): 202080189762
• 138615887358 is an abundant number, because the sum of its proper divisors (202080189762) is greater than itself. Its abundance is 63464302404

Bases of 138615887358

• Binary: 10000001000110001001101001010111111110₂
• Hexadecimal: 0x20462695FE
• Base-36: 1ROGBJ7I

Squares and roots of 138615887358

• 138615887358 squared (138615887358²) is 19214364228045744220164
• 138615887358 cubed (138615887358³) is 2663416147490373505293532576286712
• The square root of 138615887358 is 372311.5460981569
• The cube root of 138615887358 is 5175.3255007191

Scales and comparisons

• 138,615,887,358 seconds is equal to 4,407 years, 28 weeks, 6 days, 13 hours, 9 minutes, 18 seconds.
• To count from 1 to 138,615,887,358 would take you about eight thousand, eight hundred fifteen 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 138615887358 cubic inches would be around 431.3 feet tall.

Recreational maths with 138615887358

• 138615887358 backwards is 853788516831
• The number of decimal digits it has is: 12
• The sum of 138615887358's digits is 63
• More coming soon!