3868869872

Names of 3868869872

• Cardinal: 3868869872 can be written as Three billion, eight hundred sixty-eight million, eight hundred sixty-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 3.868869872 × 10⁹

Factors of 3868869872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 98

Divisors of 3868869872

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 7 8 14 16 28 49 56 89 98 112 178 196 343 356 392 623 686 712 784 1246 1372 1424 2492 2744 4361 4984 5488 7921 8722 9968 15842 17444 30527 31684 34888 55447 61054 63368 69776 110894 122108 126736 221788 244216 388129 443576 488432 704969 776258 887152 1409938 1552516 2716903 2819876 3105032 4934783 5433806 5639752 6210064 9869566 10867612 11279504 19739132 21735224 34543481 39478264 43470448 69086962 78956528 138173924 241804367 276347848 483608734 552695696 967217468 1934434936 3868869872
• Sum of all divisors σ(n): 8840952000
• Sum of proper divisors (its aliquot sum) s(n): 4972082128
• 3868869872 is an abundant number, because the sum of its proper divisors (4972082128) is greater than itself. Its abundance is 1103212256

Bases of 3868869872

• Binary: 11100110100110100100010011110000₂
• Hexadecimal: 0xE69A44F0
• Base-36: 1RZFB3K

Squares and roots of 3868869872

• 3868869872 squared (3868869872²) is 14968154086469296384
• 3868869872 cubed (3868869872³) is 57909840384594743633096142848
• The square root of 3868869872 is 62200.2401281539
• The cube root of 3868869872 is 1569.8616281689

Scales and comparisons

• 3,868,869,872 seconds is equal to 123 years, 6 days, 14 hours, 4 minutes, 32 seconds.
• To count from 1 to 3,868,869,872 would take you about two hundred forty-six 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 3868869872 cubic inches would be around 130.8 feet tall.

Recreational maths with 3868869872

• 3868869872 backwards is 2789688683
• The number of decimal digits it has is: 10
• The sum of 3868869872's digits is 65
• More coming soon!