16387965423909121

Names of 16387965423909121

• Cardinal: 16387965423909121 can be written as Sixteen quadrillion, three hundred eighty-seven trillion, nine hundred sixty-five billion, four hundred twenty-three million, nine hundred nine thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 1.6387965423909121 × 10¹⁶

Factors of 16387965423909121

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9151

Divisors of 16387965423909121

• Number of divisors d(n): 63
• Complete list of divisors:
  1 7 41 49 287 343 1681 2009 2401 9103 11767 14063 16807 63721 82369 98441 117649 373223 446047 576583 689087 2612561 3122329 4036081 4823609 15302143 18287927 21856303 28252567 82864609 107115001 128015489 152994121 197767969 580052263 749805007 896108423 1070958847 3397448969 4060365841 5248635049 6272758961 23782142783 28422560887 36740445343 43909312727 139295407729 166474999481 198957926209 257183117401 975067854103 1165324996367 1392705483463 1800281821807 6825474978721 8157274974569 9748938384241 47778324851047 57100924821983 334448273957329 399706473753881 2341137917701303 16387965423909121
• Sum of all divisors σ(n): 19599120219090243
• Sum of proper divisors (its aliquot sum) s(n): 3211154795181122
• 16387965423909121 is a deficient number, because the sum of its proper divisors (3211154795181122) is less than itself. Its deficiency is 13176810628727999

Bases of 16387965423909121

• Binary: 111010001110001100010010001001101011101111100100000001₂
• Hexadecimal: 0x3A38C489AEF901
• Base-36: 4HD1RDSO0LD

Squares and roots of 16387965423909121

• 16387965423909121 squared (16387965423909121²) is 268565410735240855956472866992641
• 16387965423909121 cubed (16387965423909121³) is 4401240665187078609764633839521083272765359778561
• 16387965423909121 is a perfect square number. Its square root is 128015489
• The cube root of 16387965423909121 is 254004.6572807833

Scales and comparisons

• 16,387,965,423,909,121 seconds is equal to 521,086,609 years, 9 weeks, 16 hours, 32 minutes, 1 second.
• To count from 1 to 16,387,965,423,909,121 would take you about one billion, five hundred sixty-three million, two hundred fifty-nine thousand, eight hundred twenty-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 16387965423909121 cubic inches would be around 21167.1 feet tall.

Recreational maths with 16387965423909121

• 16387965423909121 backwards is 12190932456978361
• The number of decimal digits it has is: 17
• The sum of 16387965423909121's digits is 76
• More coming soon!