21383736525

Names of 21383736525

• Cardinal: 21383736525 can be written as Twenty-one billion, three hundred eighty-three million, seven hundred thirty-six thousand, five hundred twenty-five.

Scientific notation

• Scientific notation: 2.1383736525 × 10¹⁰

Factors of 21383736525

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3948

Divisors of 21383736525

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 9 15 23 25 29 37 45 69 75 87 111 115 145 185 207 225 261 333 345 435 555 575 667 725 851 925 1035 1073 1305 1665 1725 2001 2175 2553 2775 3219 3335 3851 4255 5175 5365 6003 6525 7659 8325 9657 10005 11553 12765 16095 16675 19255 21275 24679 26825 30015 34659 38295 48285 50025 57765 63825 74037 80475 88573 96275 111679 123395 142487 150075 173295 191475 222111 241425 265719 288825 335037 370185 427461 442865 558395 616975 712435 797157 866475 1005111 1110555 1282383 1328595 1675185 1850925 2137305 2214325 2568617 2791975 3277201 3562175 3985785 4132123 5025555 5552775 6411915 6642975 7705851 8375925 9831603 10686525 12396369 12843085 16386005 19928925 20660615 23117553 25127775 29494809 32059575 37189107 38529255 49158015 61981845 64215425 81930025 95038829 103303075 115587765 147474045 185945535 192646275 245790075 285116487 309909225 475194145 577938825 737370225 855349461 929727675 1425582435 2375970725 4276747305 7127912175 21383736525
• Sum of all divisors σ(n): 42472460160
• Sum of proper divisors (its aliquot sum) s(n): 21088723635
• 21383736525 is a deficient number, because the sum of its proper divisors (21088723635) is less than itself. Its deficiency is 295012890

Bases of 21383736525

• Binary: 10011111010100100011110110011001101₂
• Hexadecimal: 0x4FA91ECCD
• Base-36: 9TNBOP9

Squares and roots of 21383736525

• 21383736525 squared (21383736525²) is 457264187770619075625
• 21383736525 cubed (21383736525³) is 9778016913605045449304049703125
• The square root of 21383736525 is 146231.7904048227
• The cube root of 21383736525 is 2775.6276057951

Scales and comparisons

• 21,383,736,525 seconds is equal to 679 years, 48 weeks, 4 days, 22 hours, 48 minutes, 45 seconds.
• To count from 1 to 21,383,736,525 would take you about one thousand, three hundred fifty-nine 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 21383736525 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383736525

• 21383736525 backwards is 52563738312
• 21383736525 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21383736525's digits is 45
• More coming soon!