21072517167

Names of 21072517167

• Cardinal: 21072517167 can be written as Twenty-one billion, seventy-two million, five hundred seventeen thousand, one hundred sixty-seven.

Scientific notation

• Scientific notation: 2.1072517167 × 10¹⁰

Factors of 21072517167

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6232

Divisors of 21072517167

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 29 37 39 83 87 111 249 377 481 1073 1079 1131 1443 2407 3071 3219 3237 6067 7221 9213 13949 18201 31291 39923 41847 78871 89059 93873 119769 175943 224479 236613 267177 503561 527829 673437 1157767 1510683 2287259 2918227 3473301 6509891 6546293 6861777 8754681 14603269 18631757 19529673 19638879 43809807 55895271 84628583 189842497 242212841 253885749 540320953 569527491 726638523 1620962859 7024172389 21072517167
• Sum of all divisors σ(n): 32540014080
• Sum of proper divisors (its aliquot sum) s(n): 11467496913
• 21072517167 is a deficient number, because the sum of its proper divisors (11467496913) is less than itself. Its deficiency is 9605020254

Bases of 21072517167

• Binary: 10011101000000001010001100000101111₂
• Hexadecimal: 0x4E805182F
• Base-36: 9OI16B3

Squares and roots of 21072517167

• 21072517167 squared (21072517167²) is 444050979753509705889
• 21072517167 cubed (21072517167³) is 9357271893879002705847073496463
• The square root of 21072517167 is 145163.7598266179
• The cube root of 21072517167 is 2762.0962321425

Scales and comparisons

• 21,072,517,167 seconds is equal to 670 years, 2 weeks, 20 hours, 59 minutes, 27 seconds.
• To count from 1 to 21,072,517,167 would take you about one thousand, three hundred forty 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 21072517167 cubic inches would be around 230.2 feet tall.

Recreational maths with 21072517167

• 21072517167 backwards is 76171527012
• 21072517167 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21072517167's digits is 39
• More coming soon!