664748394

Names of 664748394

• Cardinal: 664748394 can be written as Six hundred sixty-four million, seven hundred forty-eight thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 6.64748394 × 10⁸

Factors of 664748394

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 26325

Divisors of 664748394

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 5261 10522 15783 21059 31566 42118 63177 126354 110791399 221582798 332374197 664748394
• Sum of all divisors σ(n): 1329812640
• Sum of proper divisors (its aliquot sum) s(n): 665064246
• 664748394 is an abundant number, because the sum of its proper divisors (665064246) is greater than itself. Its abundance is 315852

Bases of 664748394

• Binary: 100111100111110100000101101010₂
• Hexadecimal: 0x279F416A
• Base-36: AZRV56

Squares and roots of 664748394

• 664748394 squared (664748394²) is 441890427325579236
• 664748394 cubed (664748394³) is 293745951888652512250746984
• The square root of 664748394 is 25782.7150238295
• The cube root of 664748394 is 872.7417770415

Scales and comparisons

• 664,748,394 seconds is equal to 21 years, 7 weeks, 20 hours, 19 minutes, 54 seconds.
• To count from 1 to 664,748,394 would take you about thirty-one 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 664748394 cubic inches would be around 72.7 feet tall.

Recreational maths with 664748394

• 664748394 backwards is 493847466
• The number of decimal digits it has is: 9
• The sum of 664748394's digits is 51
• More coming soon!