64749990900

Names of 64749990900

• Cardinal: 64749990900 can be written as Sixty-four billion, seven hundred forty-nine million, nine hundred ninety thousand, nine hundred.

Scientific notation

• Scientific notation: 6.47499909 × 10¹⁰

Factors of 64749990900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 30833346

Divisors of 64749990900

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 30833329 61666658 92499987 123333316 154166645 184999974 215833303 308333290 369999948 431666606 462499935 616666580 647499909 770833225 863333212 924999870 1079166515 1294999818 1541666450 1849999740 2158333030 2312499675 2589999636 3083332900 3237499545 4316666060 4624999350 5395832575 6474999090 9249998700 10791665150 12949998180 16187497725 21583330300 32374995450 64749990900
• Sum of all divisors σ(n): 214106643520
• Sum of proper divisors (its aliquot sum) s(n): 149356652620
• 64749990900 is an abundant number, because the sum of its proper divisors (149356652620) is greater than itself. Its abundance is 84606661720

Bases of 64749990900

• Binary: 111100010011011001100111001111110100₂
• Hexadecimal: 0xF136673F4
• Base-36: TQUH0QC

Squares and roots of 64749990900

• 64749990900 squared (64749990900²) is 4192561321550082810000
• 64749990900 cubed (64749990900³) is 271468307418059835841746429000000
• The square root of 64749990900 is 254460.1951190007
• The cube root of 64749990900 is 4015.5641710135

Scales and comparisons

• 64,749,990,900 seconds is equal to 2,058 years, 44 weeks, 1 day, 4 hours, 35 minutes.
• To count from 1 to 64,749,990,900 would take you about four thousand, one hundred seventeen 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 64749990900 cubic inches would be around 334.6 feet tall.

Recreational maths with 64749990900

• 64749990900 backwards is 00909994746
• The number of decimal digits it has is: 11
• The sum of 64749990900's digits is 57
• More coming soon!