72742131525

Names of 72742131525

• Cardinal: 72742131525 can be written as Seventy-two billion, seven hundred forty-two million, one hundred thirty-one thousand, five hundred twenty-five.

Scientific notation

• Scientific notation: 7.2742131525 × 10¹⁰

Factors of 72742131525

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 243

Divisors of 72742131525

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 7 15 21 25 35 75 79 105 149 175 237 395 447 525 553 745 1043 1185 1659 1975 2235 2765 3129 3725 5215 5925 6241 8295 11175 11771 13825 15645 18723 22201 26075 31205 35313 41475 43687 58855 66603 78225 82397 93615 111005 131061 155407 156025 176565 218435 247191 294275 333015 411985 466221 468075 555025 655305 777035 882825 929909 1092175 1235955 1665075 1753879 2059925 2331105 2789727 3276525 3885175 4649545 5261637 6179775 6509363 8769395 11655525 12277153 13948635 19528089 23247725 26308185 32546815 36831459 43846975 61385765 69743175 97640445 131540925 138556441 162734075 184157295 306928825 415669323 488202225 692782205 920786475 969895087 2078346615 2909685261 3463911025 4849475435 10391733075 14548426305 24247377175 72742131525
• Sum of all divisors σ(n): 140150425632
• Sum of proper divisors (its aliquot sum) s(n): 67408294107
• 72742131525 is a deficient number, because the sum of its proper divisors (67408294107) is less than itself. Its deficiency is 5333837418

Bases of 72742131525

• Binary: 1000011101111110001001101011101000101₂
• Hexadecimal: 0x10EFC4D745
• Base-36: XF0SBWL

Squares and roots of 72742131525

• 72742131525 squared (72742131525²) is 5291417698800398825625
• 72742131525 cubed (72742131525³) is 384909002199851446096069290328125
• The square root of 72742131525 is 269707.4925266259
• The cube root of 72742131525 is 4174.4122953921

Scales and comparisons

• 72,742,131,525 seconds is equal to 2,312 years, 50 weeks, 4 days, 19 hours, 38 minutes, 45 seconds.
• To count from 1 to 72,742,131,525 would take you about four thousand, six hundred twenty-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 72742131525 cubic inches would be around 347.9 feet tall.

Recreational maths with 72742131525

• 72742131525 backwards is 52513124727
• The number of decimal digits it has is: 11
• The sum of 72742131525's digits is 39
• More coming soon!