972638189091

Names of 972638189091

• Cardinal: 972638189091 can be written as Nine hundred seventy-two billion, six hundred thirty-eight million, one hundred eighty-nine thousand and ninety-one.

Scientific notation

• Scientific notation: 9.72638189091 × 10¹¹

Factors of 972638189091

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 551899

Divisors of 972638189091

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 17 23 27 51 69 153 167 207 391 459 501 621 1173 1503 2839 3519 3841 4509 8517 10557 11523 25551 34569 65297 76653 103707 195891 551689 587673 1655067 1763019 4965201 9378713 12688847 14895603 28136139 38066541 84408417 92132063 114199623 215710399 253225251 276396189 342598869 647131197 829188567 1566245071 1941393591 2119037449 2487565701 4698735213 5824180773 6357112347 14096205639 19071337041 36023636633 42288616917 57214011123 108070909899 324212729697 972638189091
• Sum of all divisors σ(n): 1601578137600
• Sum of proper divisors (its aliquot sum) s(n): 628939948509
• 972638189091 is a deficient number, because the sum of its proper divisors (628939948509) is less than itself. Its deficiency is 343698240582

Bases of 972638189091

• Binary: 1110001001110101110000001111011000100011₂
• Hexadecimal: 0xE275C0F623
• Base-36: CETNNXUR

Squares and roots of 972638189091

• 972638189091 squared (972638189091²) is 946025046878219871406281
• 972638189091 cubed (972638189091³) is 920140088430360158534336043363080571
• The square root of 972638189091 is 986224.2083273965
• The cube root of 972638189091 is 9907.9492291211

Scales and comparisons

• 972,638,189,091 seconds is equal to 30,926 years, 46 weeks, 10 hours, 44 minutes, 51 seconds.
• To count from 1 to 972,638,189,091 would take you about sixty-one thousand, eight hundred fifty-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 972638189091 cubic inches would be around 825.7 feet tall.

Recreational maths with 972638189091

• 972638189091 backwards is 190981836279
• The number of decimal digits it has is: 12
• The sum of 972638189091's digits is 63
• More coming soon!