21491068135716

Names of 21491068135716

• Cardinal: 21491068135716 can be written as Twenty-one trillion, four hundred ninety-one billion, sixty-eight million, one hundred thirty-five thousand, seven hundred sixteen.

Scientific notation

• Scientific notation: 2.1491068135716 × 10¹³

Factors of 21491068135716

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 298

Divisors of 21491068135716

• Number of divisors d(n): 105
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 293 324 486 586 729 879 972 1172 1458 1758 2637 2916 3516 5274 7911 10548 15822 23733 31644 47466 71199 85849 94932 142398 171698 213597 257547 284796 343396 427194 515094 772641 854388 1030188 1545282 2317923 3090564 4635846 6953769 9271692 13907538 20861307 25153757 27815076 41722614 50307514 62583921 75461271 83445228 100615028 125167842 150922542 226383813 250335684 301845084 452767626 679151439 905535252 1358302878 2037454317 2716605756 4074908634 6112362951 7370050801 8149817268 12224725902 14740101602 18337088853 22110152403 24449451804 29480203204 36674177706 44220304806 66330457209 73348355412 88440609612 132660914418 198991371627 265321828836 397982743254 596974114881 795965486508 1193948229762 1790922344643 2387896459524 3581844689286 5372767033929 7163689378572 10745534067858 21491068135716
• Sum of all divisors σ(n): 56581369153351
• Sum of proper divisors (its aliquot sum) s(n): 35090301017635
• 21491068135716 is an abundant number, because the sum of its proper divisors (35090301017635) is greater than itself. Its abundance is 13599232881919

Bases of 21491068135716

• Binary: 100111000101111000111011110110110100100100100₂
• Hexadecimal: 0x138BC77B6924
• Base-36: 7M8UZ3290

Squares and roots of 21491068135716

• 21491068135716 squared (21491068135716²) is 461866009613987587794832656
• 21491068135716 cubed (21491068135716³) is 9925993882185468361226658123880116741696
• 21491068135716 is a perfect square number. Its square root is 4635846
• The cube root of 21491068135716 is 27802.6376979479

Scales and comparisons

• 21,491,068,135,716 seconds is equal to 683,349 years, 25 weeks, 3 days, 12 hours, 48 minutes, 36 seconds.
• To count from 1 to 21,491,068,135,716 would take you about one million, seven hundred eight thousand, three hundred seventy-three 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 21491068135716 cubic inches would be around 2316.9 feet tall.

Recreational maths with 21491068135716

• 21491068135716 backwards is 61753186019412
• 21491068135716 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21491068135716's digits is 54
• More coming soon!