1621181536722

Names of 1621181536722

• Cardinal: 1621181536722 can be written as One trillion, six hundred twenty-one billion, one hundred eighty-one million, five hundred thirty-six thousand, seven hundred twenty-two.

Scientific notation

• Scientific notation: 1.621181536722 × 10¹²

Factors of 1621181536722

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 20794

Divisors of 1621181536722

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 11 18 19 22 33 38 57 66 99 114 171 198 209 342 418 627 1254 1881 3762 20759 41518 62277 124554 186831 228349 373662 394421 456698 685047 788842 1183263 1370094 2055141 2366526 3549789 4110282 4338631 7099578 8677262 13015893 26031786 39047679 78095358 430936081 861872162 1292808243 2585616486 3878424729 4740296891 7756849458 8187785539 9480593782 14220890673 16375571078 24563356617 28441781346 42662672019 49126713234 73690069851 85325344038 90065640929 147380139702 180131281858 270196922787 540393845574 810590768361 1621181536722
• Sum of all divisors σ(n): 4033756031760
• Sum of proper divisors (its aliquot sum) s(n): 2412574495038
• 1621181536722 is an abundant number, because the sum of its proper divisors (2412574495038) is greater than itself. Its abundance is 791392958316

Bases of 1621181536722

• Binary: 10111100101110101111100110001100111010010₂
• Hexadecimal: 0x17975F319D2
• Base-36: KORDMNKI

Squares and roots of 1621181536722

• 1621181536722 squared (1621181536722²) is 2628229575008305434505284
• 1621181536722 cubed (1621181536722³) is 4260837261270173570224420238949039048
• The square root of 1621181536722 is 1273256.2729953463
• The cube root of 1621181536722 is 11747.4575135031

Scales and comparisons

• 1,621,181,536,722 seconds is equal to 51,548 years, 29 weeks, 4 hours, 38 minutes, 42 seconds.
• To count from 1 to 1,621,181,536,722 would take you about one hundred twenty-eight thousand, eight hundred seventy-one 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 1621181536722 cubic inches would be around 979 feet tall.

Recreational maths with 1621181536722

• 1621181536722 backwards is 2276351811261
• The number of decimal digits it has is: 13
• The sum of 1621181536722's digits is 45
• More coming soon!