28129462661664800

Names of 28129462661664800

• Cardinal: 28129462661664800 can be written as Twenty-eight quadrillion, one hundred twenty-nine trillion, four hundred sixty-two billion, six hundred sixty-one million, six hundred sixty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 2.81294626616648 × 10¹⁶

Factors of 28129462661664800

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 188

Divisors of 28129462661664800

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 181 200 362 400 724 800 905 1448 1810 2896 3620 4525 5792 7240 9050 14480 18100 28960 32761 36200 65522 72400 131044 144800 163805 262088 327610 524176 655220 819025 1048352 1310440 1638050 2620880 3276100 5241760 5929741 6552200 11859482 13104400 23718964 26208800 29648705 47437928 59297410 94875856 118594820 148243525 189751712 237189640 296487050 474379280 592974100 948758560 1073283121 1185948200 2146566242 2371896400 4293132484 4743792800 5366415605 8586264968 10732831210 17172529936 21465662420 26832078025 34345059872 42931324840 53664156050 85862649680 107328312100 171725299360 194264244901 214656624200 388528489802 429313248400 777056979604 858626496800 971321224505 1554113959208 1942642449010 3108227918416 3885284898020 4856606122525 6216455836832 7770569796040 9713212245050 15541139592080 19426424490100 31082279184160 35161828327081 38852848980200 70323656654162 77705697960400 140647313308324 155411395920800 175809141635405 281294626616648 351618283270810 562589253233296 703236566541620 879045708177025 1125178506466592 1406473133083240 1758091416354050 2812946266166480 3516182832708100 5625892532332960 7032365665416200 14064731330832400 28129462661664800
• Sum of all divisors σ(n): 69052556560138011
• Sum of proper divisors (its aliquot sum) s(n): 40923093898473211
• 28129462661664800 is an abundant number, because the sum of its proper divisors (40923093898473211) is greater than itself. Its abundance is 12793631236808411

Bases of 28129462661664800

• Binary: 1100011111011111001100011100101101010111101000000100000₂
• Hexadecimal: 0x63EF98E5ABD020
• Base-36: 7OZ28QZJVA8

Squares and roots of 28129462661664800

• 28129462661664800 squared (28129462661664800²) is 791266669633994134475507559040000
• 28129462661664800 cubed (28129462661664800³) is 22257906238889294623994482001638250430689792000000
• The square root of 28129462661664800 is 167718402.8711959801
• The cube root of 28129462661664800 is 304126.1835559765
• Being both a perfect square and a perfect cube, 28129462661664800 is also a perfect sixth number.

Scales and comparisons

• 28,129,462,661,664,800 seconds is equal to 894,429,902 years, 26 weeks, 13 minutes, 20 seconds.
• To count from 1 to 28,129,462,661,664,800 would take you about two billion, six hundred eighty-three million, two hundred eighty-nine thousand, seven hundred seven 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 28129462661664800 cubic inches would be around 25343.8 feet tall.

Recreational maths with 28129462661664800

• 28129462661664800 backwards is 00846616626492182
• The number of decimal digits it has is: 17
• The sum of 28129462661664800's digits is 71
• More coming soon!