21492131325

Names of 21492131325

• Cardinal: 21492131325 can be written as Twenty-one billion, four hundred ninety-two million, one hundred thirty-one thousand, three hundred twenty-five.

Scientific notation

• Scientific notation: 2.1492131325 × 10¹⁰

Factors of 21492131325

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 127

Divisors of 21492131325

• Number of divisors d(n): 180
• Complete list of divisors:
  1 3 5 7 15 21 25 35 41 49 71 75 105 123 147 175 205 213 245 287 343 355 497 525 615 735 861 1025 1029 1065 1225 1435 1491 1681 1715 1775 2009 2401 2485 2911 3075 3479 3675 4305 5043 5145 5325 6027 7175 7203 7455 8405 8575 8733 10045 10437 11767 12005 12425 14063 14555 17395 20377 21525 24353 25215 25725 30135 35301 36015 37275 42025 42189 43665 50225 52185 58835 60025 61131 70315 72775 73059 82369 86975 98441 101885 119351 121765 126075 142639 150675 170471 176505 180075 210945 218325 247107 260925 294175 295323 305655 351575 358053 365295 411845 427917 492205 509425 511413 576583 596755 608825 713195 835457 852355 882525 998473 1054725 1235535 1476615 1528275 1729749 1790265 1826475 2059225 2139585 2461025 2506371 2557065 2882915 2983775 2995419 3565975 4036081 4177285 4261775 4992365 5848199 6177675 6989311 7383075 8648745 8951325 10697925 12108243 12531855 12785325 14414575 14977095 17544597 20180405 20886425 20967933 24961825 29240995 34946555 40937393 43243725 60541215 62659275 74885475 87722985 100902025 104839665 122812179 146204975 174732775 204686965 286561751 302706075 438614925 524198325 614060895 859685253 1023434825 1432808755 3070304475 4298426265 7164043775 21492131325
• Sum of all divisors σ(n): 43087626144
• Sum of proper divisors (its aliquot sum) s(n): 21595494819
• 21492131325 is an abundant number, because the sum of its proper divisors (21595494819) is greater than itself. Its abundance is 103363494

Bases of 21492131325

• Binary: 10100000001000001111110010111111101₂
• Hexadecimal: 0x50107E5FD
• Base-36: 9VFUYNX

Squares and roots of 21492131325

• 21492131325 squared (21492131325²) is 461911708891046255625
• 21492131325 cubed (21492131325³) is 9927467108041536242542019953125
• The square root of 21492131325 is 146601.9485716339
• The cube root of 21492131325 is 2780.3096167157

Scales and comparisons

• 21,492,131,325 seconds is equal to 683 years, 19 weeks, 6 days, 12 hours, 28 minutes, 45 seconds.
• To count from 1 to 21,492,131,325 would take you about one thousand, three hundred sixty-six 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 21492131325 cubic inches would be around 231.7 feet tall.

Recreational maths with 21492131325

• 21492131325 backwards is 52313129412
• The number of decimal digits it has is: 11
• The sum of 21492131325's digits is 33
• More coming soon!