6455664640

Names of 6455664640

• Cardinal: 6455664640 can be written as Six billion, four hundred fifty-five million, six hundred sixty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 6.45566464 × 10⁹

Factors of 6455664640

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 404

Divisors of 6455664640

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 397 512 640 794 1024 1280 1588 1985 2048 2560 3176 3970 4096 5120 6352 7940 8192 10240 12704 15880 20480 25408 31760 40960 50816 63520 101632 127040 157609 203264 254080 315218 406528 508160 630436 788045 813056 1016320 1260872 1576090 1626112 2032640 2521744 3152180 3252224 4065280 5043488 6304360 8130560 10086976 12608720 16261120 20173952 25217440 40347904 50434880 80695808 100869760 161391616 201739520 322783232 403479040 645566464 806958080 1291132928 1613916160 3227832320 6455664640
• Sum of all divisors σ(n): 15531772086
• Sum of proper divisors (its aliquot sum) s(n): 9076107446
• 6455664640 is an abundant number, because the sum of its proper divisors (9076107446) is greater than itself. Its abundance is 2620442806

Bases of 6455664640

• Binary: 110000000110010011010000000000000₂
• Hexadecimal: 0x180C9A000
• Base-36: 2YRJAPS

Squares and roots of 6455664640

• 6455664640 squared (6455664640²) is 41675605944146329600
• 6455664640 cubed (6455664640³) is 269043735644199274984505344000
• The square root of 6455664640 is 80347.1507895581
• The cube root of 6455664640 is 1862.0027604647

Scales and comparisons

• 6,455,664,640 seconds is equal to 205 years, 14 weeks, 8 hours, 10 minutes, 40 seconds.
• To count from 1 to 6,455,664,640 would take you about four hundred ten 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 6455664640 cubic inches would be around 155.2 feet tall.

Recreational maths with 6455664640

• 6455664640 backwards is 0464665546
• The number of decimal digits it has is: 10
• The sum of 6455664640's digits is 46
• More coming soon!