138948306939

Names of 138948306939

• Cardinal: 138948306939 can be written as One hundred thirty-eight billion, nine hundred forty-eight million, three hundred six thousand, nine hundred thirty-nine.

Scientific notation

• Scientific notation: 1.38948306939 × 10¹¹

Factors of 138948306939

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 19621

Divisors of 138948306939

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 13 37 39 111 117 127 169 333 381 481 507 1143 1443 1521 1651 4329 4699 4953 6253 14097 14859 18759 19441 21463 42291 56277 58323 61087 64389 174969 183261 193167 252733 549783 719317 758199 794131 2157951 2274597 2382393 2469007 3285529 6473853 7147179 7407021 9351121 9856587 22221063 28053363 29569761 32097091 84160089 91353259 96291273 121564573 274059777 288873819 364693719 417262183 822179331 1094081157 1187592367 1251786549 3562777101 3755359647 10688331303 15438700771 46316102313 138948306939
• Sum of all divisors σ(n): 224972247552
• Sum of proper divisors (its aliquot sum) s(n): 86023940613
• 138948306939 is a deficient number, because the sum of its proper divisors (86023940613) is less than itself. Its deficiency is 52924366326

Bases of 138948306939

• Binary: 10000001011001111101101110011111111011₂
• Hexadecimal: 0x2059F6E7FB
• Base-36: 1RTY8FSR

Squares and roots of 138948306939

• 138948306939 squared (138948306939²) is 19306632001214555549721
• 138948306939 cubed (138948306939³) is 2682623829263079885317099383814019
• The square root of 138948306939 is 372757.7054052673
• The cube root of 138948306939 is 5179.4592407555

Scales and comparisons

• 138,948,306,939 seconds is equal to 4,418 years, 6 weeks, 3 days, 23 hours, 55 minutes, 39 seconds.
• To count from 1 to 138,948,306,939 would take you about eight thousand, eight hundred thirty-six 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 138948306939 cubic inches would be around 431.6 feet tall.

Recreational maths with 138948306939

• 138948306939 backwards is 939603849831
• The number of decimal digits it has is: 12
• The sum of 138948306939's digits is 63
• More coming soon!