640677318940160

Names of 640677318940160

• Cardinal: 640677318940160 can be written as Six hundred forty trillion, six hundred seventy-seven billion, three hundred eighteen million, nine hundred forty thousand, one hundred sixty.

Scientific notation

• Scientific notation: 6.4067731894016 × 10¹⁴

Factors of 640677318940160

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 478517887

Divisors of 640677318940160

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 523 640 1046 1280 2092 2560 2615 4184 5230 8368 10460 16736 20920 33472 41840 66944 83680 133888 167360 267776 334720 669440 1338880 478517357 957034714 1914069428 2392586785 3828138856 4785173570 7656277712 9570347140 15312555424 19140694280 30625110848 38281388560 61250221696 76562777120 122500443392 153125554240 245000886784 250264577711 306251108480 500529155422 612502216960 1001058310844 1225004433920 1251322888555 2002116621688 2502645777110 4004233243376 5005291554220 8008466486752 10010583108440 16016932973504 20021166216880 32033865947008 40042332433760 64067731894016 80084664867520 128135463788032 160169329735040 320338659470080 640677318940160
• Sum of all divisors σ(n): 1539061120743696
• Sum of proper divisors (its aliquot sum) s(n): 898383801803536
• 640677318940160 is an abundant number, because the sum of its proper divisors (898383801803536) is greater than itself. Its abundance is 257706482863376

Bases of 640677318940160

• Binary: 10010001101011000101010000000000101101011000000000₂
• Hexadecimal: 0x246B15002D600
• Base-36: 6B3N3HWCU8

Squares and roots of 640677318940160

• 640677318940160 squared (640677318940160²) is 410467427004351499465660825600
• 640677318940160 cubed (640677318940160³) is 262977170645413749179349116580709422596096000
• The square root of 640677318940160 is 25311604.4323578983
• The cube root of 640677318940160 is 86207.7777043387

Scales and comparisons

• 640,677,318,940,160 seconds is equal to 20,371,556 years, 51 weeks, 5 days, 23 hours, 49 minutes, 20 seconds.
• To count from 1 to 640,677,318,940,160 would take you about fifty million, nine hundred twenty-eight thousand, eight hundred ninety-two 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 640677318940160 cubic inches would be around 7184 feet tall.

Recreational maths with 640677318940160

• 640677318940160 backwards is 061049813776046
• The number of decimal digits it has is: 15
• The sum of 640677318940160's digits is 62
• More coming soon!