139721725

Names of 139721725

• Cardinal: 139721725 can be written as One hundred thirty-nine million, seven hundred twenty-one thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 1.39721725 × 10⁸

Factors of 139721725

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 65

Divisors of 139721725

• Number of divisors d(n): 96
• Complete list of divisors:
  1 5 11 13 17 19 25 55 65 85 95 121 143 187 209 221 247 275 323 325 425 475 605 715 935 1045 1105 1235 1331 1573 1615 2057 2299 2431 2717 3025 3553 3575 4199 4675 5225 5525 6175 6655 7865 8075 10285 11495 12155 13585 17303 17765 20995 22627 25289 26741 29887 33275 39083 39325 46189 51425 57475 60775 67925 86515 88825 104975 113135 126445 133705 149435 195415 230945 294151 328757 429913 432575 508079 565675 632225 668525 747175 977075 1154725 1470755 1643785 2149565 2540395 5588869 7353775 8218925 10747825 12701975 27944345 139721725
• Sum of all divisors σ(n): 228735360
• Sum of proper divisors (its aliquot sum) s(n): 89013635
• 139721725 is a deficient number, because the sum of its proper divisors (89013635) is less than itself. Its deficiency is 50708090

Bases of 139721725

• Binary: 1000010100111111101111111101₂
• Hexadecimal: 0x853FBFD
• Base-36: 2B6PZ1

Squares and roots of 139721725

• 139721725 squared (139721725²) is 19522160436975625
• 139721725 cubed (139721725³) is 2727669931980988107953125
• The square root of 139721725 is 11820.3944519631
• The cube root of 139721725 is 518.9051483483

Scales and comparisons

• 139,721,725 seconds is equal to 4 years, 23 weeks, 3 hours, 35 minutes, 25 seconds.
• To count from 1 to 139,721,725 would take you about 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 139721725 cubic inches would be around 43.2 feet tall.

Recreational maths with 139721725

• 139721725 backwards is 527127931
• The number of decimal digits it has is: 9
• The sum of 139721725's digits is 37
• More coming soon!