139956840

Names of 139956840

• Cardinal: 139956840 can be written as One hundred thirty-nine million, nine hundred fifty-six thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3995684 × 10⁸

Factors of 139956840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 16936

Divisors of 139956840

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 30 36 40 45 46 60 69 72 90 92 115 120 138 180 184 207 230 276 345 360 414 460 552 690 828 920 1035 1380 1656 2070 2760 4140 8280 16903 33806 50709 67612 84515 101418 135224 152127 169030 202836 253545 304254 338060 388769 405672 507090 608508 676120 760635 777538 1014180 1166307 1217016 1521270 1555076 1943845 2028360 2332614 3042540 3110152 3498921 3887690 4665228 5831535 6085080 6997842 7775380 9330456 11663070 13995684 15550760 17494605 23326140 27991368 34989210 46652280 69978420 139956840
• Sum of all divisors σ(n): 474664320
• Sum of proper divisors (its aliquot sum) s(n): 334707480
• 139956840 is an abundant number, because the sum of its proper divisors (334707480) is greater than itself. Its abundance is 194750640

Bases of 139956840

• Binary: 1000010101111001001001101000₂
• Hexadecimal: 0x8579268
• Base-36: 2BBRE0

Squares and roots of 139956840

• 139956840 squared (139956840²) is 19587917062785600
• 139956840 cubed (139956840³) is 2741462974289554173504000
• The square root of 139956840 is 11830.3355827297
• The cube root of 139956840 is 519.1960456425

Scales and comparisons

• 139,956,840 seconds is equal to 4 years, 23 weeks, 2 days, 20 hours, 54 minutes.
• To count from 1 to 139,956,840 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 139956840 cubic inches would be around 43.3 feet tall.

Recreational maths with 139956840

• 139956840 backwards is 048659931
• 139956840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 139956840's digits is 45
• More coming soon!