72100242018

Names of 72100242018

• Cardinal: 72100242018 can be written as Seventy-two billion, one hundred million, two hundred forty-two thousand and eighteen.

Scientific notation

• Scientific notation: 7.2100242018 × 10¹⁰

Factors of 72100242018

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5171

Divisors of 72100242018

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 29 42 54 58 63 87 126 174 189 203 261 378 406 522 609 783 1218 1566 1827 2521 2609 3654 5042 5218 5481 7563 7827 10962 15126 15654 17647 18263 22689 23481 35294 36526 45378 46962 52941 54789 68067 70443 73109 75661 105882 109578 136134 140886 146218 151322 158823 164367 219327 226983 317646 328734 438654 453966 476469 493101 511763 529627 657981 680949 952938 986202 1023526 1059254 1315962 1361898 1535289 1588881 1973943 2042847 3070578 3177762 3947886 4085694 4605867 4766643 6577289 9211734 9533286 13154578 13817601 14299929 19731867 27635202 28599858 39463734 46041023 59195601 92082046 118391202 138123069 177586803 190741381 276246138 355173606 381482762 414369207 572224143 828738414 1144448286 1243107621 1335189667 1716672429 2486215242 2670379334 3433344858 4005569001 5150017287 8011138002 10300034574 12016707003 24033414006 36050121009 72100242018
• Sum of all divisors σ(n): 189573696000
• Sum of proper divisors (its aliquot sum) s(n): 117473453982
• 72100242018 is an abundant number, because the sum of its proper divisors (117473453982) is greater than itself. Its abundance is 45373211964

Bases of 72100242018

• Binary: 1000011001001100000100110001001100010₂
• Hexadecimal: 0x10C9826262
• Base-36: X4EMESI

Squares and roots of 72100242018

• 72100242018 squared (72100242018²) is 5198444899054172712324
• 72100242018 cubed (72100242018³) is 374809135339043431851331891229832
• The square root of 72100242018 is 268514.8823026389
• The cube root of 72100242018 is 4162.0974156217

Scales and comparisons

• 72,100,242,018 seconds is equal to 2,292 years, 29 weeks, 2 days, 13 hours, 18 seconds.
• To count from 1 to 72,100,242,018 would take you about four thousand, five hundred eighty-five 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 72100242018 cubic inches would be around 346.8 feet tall.

Recreational maths with 72100242018

• 72100242018 backwards is 81024200127
• 72100242018 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72100242018's digits is 27
• More coming soon!