2157421329

Names of 2157421329

• Cardinal: 2157421329 can be written as Two billion, one hundred fifty-seven million, four hundred twenty-one thousand, three hundred twenty-nine.

Scientific notation

• Scientific notation: 2.157421329 × 10⁹

Factors of 2157421329

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1236

Divisors of 2157421329

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 17 19 21 51 57 63 97 119 133 153 171 291 323 357 399 679 873 969 1071 1093 1197 1649 1843 2037 2261 2907 3279 4947 5529 6111 6783 7651 9837 11543 12901 14841 16587 18581 20349 20767 22953 31331 34629 38703 55743 62301 68859 93993 103887 106021 116109 130067 145369 167229 186903 219317 281979 318063 353039 390201 436107 657951 742147 954189 1059117 1170603 1308321 1802357 1973853 2014399 2226441 2471273 3177351 5407071 6043197 6679323 7413819 12616499 14100793 16221213 18129591 22241457 34244783 37849497 42302379 102734349 113548491 126907137 239713481 308203047 719140443 2157421329
• Sum of all divisors σ(n): 4014017280
• Sum of proper divisors (its aliquot sum) s(n): 1856595951
• 2157421329 is a deficient number, because the sum of its proper divisors (1856595951) is less than itself. Its deficiency is 300825378

Bases of 2157421329

• Binary: 10000000100101111010001100010001₂
• Hexadecimal: 0x8097A311
• Base-36: ZOH0Y9

Squares and roots of 2157421329

• 2157421329 squared (2157421329²) is 4654466790824126241
• 2157421329 cubed (2157421329³) is 10041645929646151440121994289
• The square root of 2157421329 is 46448.0497868317
• The cube root of 2157421329 is 1292.1462037851

Scales and comparisons

• 2,157,421,329 seconds is equal to 68 years, 31 weeks, 1 day, 3 hours, 42 minutes, 9 seconds.
• To count from 1 to 2,157,421,329 would take you about one hundred thirty-seven 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 2157421329 cubic inches would be around 107.7 feet tall.

Recreational maths with 2157421329

• 2157421329 backwards is 9231247512
• The number of decimal digits it has is: 10
• The sum of 2157421329's digits is 36
• More coming soon!