21159272427390

Names of 21159272427390

• Cardinal: 21159272427390 can be written as Twenty-one trillion, one hundred fifty-nine billion, two hundred seventy-two million, four hundred twenty-seven thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.115927242739 × 10¹³

Factors of 21159272427390

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 78367675667

Divisors of 21159272427390

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 78367675657 156735351314 235103026971 391838378285 470206053942 705309080913 783676756570 1175515134855 1410618161826 2115927242739 2351030269710 3526545404565 4231854485478 7053090809130 10579636213695 21159272427390
• Sum of all divisors σ(n): 56424726473760
• Sum of proper divisors (its aliquot sum) s(n): 35265454046370
• 21159272427390 is an abundant number, because the sum of its proper divisors (35265454046370) is greater than itself. Its abundance is 14106181618980

Bases of 21159272427390

• Binary: 100110011111010000110111010101010111101111110₂
• Hexadecimal: 0x133E86EAAF7E
• Base-36: 7I0FOHJ7I

Squares and roots of 21159272427390

• 21159272427390 squared (21159272427390²) is 447714809656506702822212100
• 21159272427390 cubed (21159272427390³) is 9473319627299084393932753184776429419000
• The square root of 21159272427390 is 4599920.9153408279
• The cube root of 21159272427390 is 27658.8154612693

Scales and comparisons

• 21,159,272,427,390 seconds is equal to 672,799 years, 21 weeks, 3 days, 10 hours, 16 minutes, 30 seconds.
• To count from 1 to 21,159,272,427,390 would take you about one million, six hundred eighty-one thousand, nine hundred ninety-eight 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 21159272427390 cubic inches would be around 2304.9 feet tall.

Recreational maths with 21159272427390

• 21159272427390 backwards is 09372427295112
• 21159272427390 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21159272427390's digits is 54
• More coming soon!