68136090

Names of 68136090

• Cardinal: 68136090 can be written as Sixty-eight million, one hundred thirty-six thousand and ninety.

Scientific notation

• Scientific notation: 6.813609 × 10⁷

Factors of 68136090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 10907

Divisors of 68136090

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 11 15 19 22 30 33 38 55 57 66 95 110 114 165 190 209 285 330 418 570 627 1045 1254 2090 3135 6270 10867 21734 32601 54335 65202 108670 119537 163005 206473 239074 326010 358611 412946 597685 619419 717222 1032365 1195370 1238838 1793055 2064730 2271203 3097095 3586110 4542406 6194190 6813609 11356015 13627218 22712030 34068045 68136090
• Sum of all divisors σ(n): 187799040
• Sum of proper divisors (its aliquot sum) s(n): 119662950
• 68136090 is an abundant number, because the sum of its proper divisors (119662950) is greater than itself. Its abundance is 51526860

Bases of 68136090

• Binary: 100000011111010110010011010₂
• Hexadecimal: 0x40FAC9A
• Base-36: 14KE56

Squares and roots of 68136090

• 68136090 squared (68136090²) is 4642526760488100
• 68136090 cubed (68136090³) is 316323621180025625529000
• The square root of 68136090 is 8254.4587950997
• The cube root of 68136090 is 408.4376191595

Scales and comparisons

• 68,136,090 seconds is equal to 2 years, 8 weeks, 4 days, 14 hours, 41 minutes, 30 seconds.
• To count from 1 to 68,136,090 would take you about three 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 68136090 cubic inches would be around 34 feet tall.

Recreational maths with 68136090

• 68136090 backwards is 09063186
• 68136090 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 68136090's digits is 33
• More coming soon!