21015045363

Names of 21015045363

• Cardinal: 21015045363 can be written as Twenty-one billion, fifteen million, forty-five thousand, three hundred sixty-three.

Scientific notation

• Scientific notation: 2.1015045363 × 10¹⁰

Factors of 21015045363

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 4984

Divisors of 21015045363

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 17 37 39 51 111 181 221 481 543 629 663 1443 1887 2353 3077 4733 6697 7059 8177 9231 14199 20091 24531 40001 61529 80461 87061 113849 120003 175121 184587 241383 261183 341547 525363 856673 1045993 1480037 2276573 2570019 2977057 3137979 4440111 6829719 8931171 11136749 14563441 31696901 33410247 38701741 43690323 95090703 116105223 189324733 412059713 538847317 567974199 1236179139 1616541951 7005015121 21015045363
• Sum of all divisors σ(n): 33002266752
• Sum of proper divisors (its aliquot sum) s(n): 11987221389
• 21015045363 is a deficient number, because the sum of its proper divisors (11987221389) is less than itself. Its deficiency is 9027823974

Bases of 21015045363

• Binary: 10011100100100110000010010011110011₂
• Hexadecimal: 0x4E49824F3
• Base-36: 9NJTCS3

Squares and roots of 21015045363

• 21015045363 squared (21015045363²) is 441632131608947801769
• 21015045363 cubed (21015045363³) is 9280919279520424230874666647147
• The square root of 21015045363 is 144965.6696014611
• The cube root of 21015045363 is 2759.5828923601

Scales and comparisons

• 21,015,045,363 seconds is equal to 668 years, 11 weeks, 16 hours, 36 minutes, 3 seconds.
• To count from 1 to 21,015,045,363 would take you about one thousand, three hundred thirty-six 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 21015045363 cubic inches would be around 230 feet tall.

Recreational maths with 21015045363

• 21015045363 backwards is 36354051012
• The number of decimal digits it has is: 11
• The sum of 21015045363's digits is 30
• More coming soon!