21020840758016

Names of 21020840758016

• Cardinal: 21020840758016 can be written as Twenty-one trillion, twenty billion, eight hundred forty million, seven hundred fifty-eight thousand and sixteen.

Scientific notation

• Scientific notation: 2.1020840758016 × 10¹³

Factors of 21020840758016

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 86412

Divisors of 21020840758016

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 704 1408 2816 86399 172798 345596 691192 950389 1382384 1900778 2764768 3801556 5529536 7603112 11059072 15206224 22118144 30412448 60824896 121649792 243299584 7464787201 14929574402 29859148804 59718297608 82112659211 119436595216 164225318422 238873190432 328450636844 477746380864 656901273688 955492761728 1313802547376 1910985523456 2627605094752 5255210189504 10510420379008 21020840758016
• Sum of all divisors σ(n): 45774604921332
• Sum of proper divisors (its aliquot sum) s(n): 24753764163316
• 21020840758016 is an abundant number, because the sum of its proper divisors (24753764163316) is greater than itself. Its abundance is 3732923405300

Bases of 21020840758016

• Binary: 100110001111001001011101111110000101100000000₂
• Hexadecimal: 0x131E4BBF0B00
• Base-36: 7G8U9UFI8

Squares and roots of 21020840758016

• 21020840758016 squared (21020840758016²) is 441875746173866681468256256
• 21020840758016 cubed (21020840758016³) is 9288599695150349304204906256216774148096
• The square root of 21020840758016 is 4584849.0441906591
• The cube root of 21020840758016 is 27598.3654242771

Scales and comparisons

• 21,020,840,758,016 seconds is equal to 668,397 years, 37 weeks, 1 day, 46 minutes, 56 seconds.
• To count from 1 to 21,020,840,758,016 would take you about one million, six hundred seventy thousand, nine hundred ninety-four 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 21020840758016 cubic inches would be around 2299.9 feet tall.

Recreational maths with 21020840758016

• 21020840758016 backwards is 61085704802012
• 21020840758016 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21020840758016's digits is 44
• More coming soon!