161521537827640

Names of 161521537827640

• Cardinal: 161521537827640 can be written as One hundred sixty-one trillion, five hundred twenty-one billion, five hundred thirty-seven million, eight hundred twenty-seven thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.6152153782764 × 10¹⁴

Factors of 161521537827640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 395820

Divisors of 161521537827640

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 2239 4478 4637 8956 9274 11195 17912 18548 22390 23185 37096 44780 46370 89560 92740 185480 388937 777874 1555748 1944685 3111496 3889370 7778740 10382243 15557480 20764486 41528972 51911215 83057944 103822430 207644860 415289720 870829943 1741659886 1803500869 3483319772 3607001738 4354149715 6966639544 7214003476 8708299430 9017504345 14428006952 17416598860 18035008690 34833197720 36070017380 72140034760 4038038445691 8076076891382 16152153782764 20190192228455 32304307565528 40380384456910 80760768913820 161521537827640
• Sum of all divisors σ(n): 363665119910400
• Sum of proper divisors (its aliquot sum) s(n): 202143582082760
• 161521537827640 is an abundant number, because the sum of its proper divisors (202143582082760) is greater than itself. Its abundance is 40622044255120

Bases of 161521537827640

• Binary: 100100101110011100101001111000101100001100111000₂
• Hexadecimal: 0x92E729E2C338
• Base-36: 1L95YX9D14

Squares and roots of 161521537827640

• 161521537827640 squared (161521537827640²) is 26089207182205739450347969600
• 161521537827640 cubed (161521537827640³) is 4213968864773781518522497433307268759744000
• The square root of 161521537827640 is 12709112.3933829463
• The cube root of 161521537827640 is 54459.8967471703

Scales and comparisons

• 161,521,537,827,640 seconds is equal to 5,135,885 years, 14 weeks, 5 days, 9 hours, 40 seconds.
• To count from 1 to 161,521,537,827,640 would take you about twelve million, eight hundred thirty-nine thousand, seven hundred thirteen 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 161521537827640 cubic inches would be around 4538.3 feet tall.

Recreational maths with 161521537827640

• 161521537827640 backwards is 046728735125161
• The number of decimal digits it has is: 15
• The sum of 161521537827640's digits is 58
• More coming soon!