21348161961

Names of 21348161961

• Cardinal: 21348161961 can be written as Twenty-one billion, three hundred forty-eight million, one hundred sixty-one thousand, nine hundred sixty-one.

Scientific notation

• Scientific notation: 2.1348161961 × 10¹⁰

Factors of 21348161961

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6654

Divisors of 21348161961

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 17 21 51 67 119 139 201 357 417 469 973 1139 1407 2363 2919 3417 6421 7089 7973 9313 16541 19263 23919 27939 44947 49623 65191 109157 134841 158321 195573 327471 430207 474963 764099 892519 1108247 1290621 2292297 2677557 3011449 3324741 6247633 7313519 9034347 15172823 18742899 21940557 45518469 51194633 59798773 106209761 153583899 179396319 318629283 418591411 1016579141 1255774233 3049737423 7116053987 21348161961
• Sum of all divisors σ(n): 35215165440
• Sum of proper divisors (its aliquot sum) s(n): 13867003479
• 21348161961 is a deficient number, because the sum of its proper divisors (13867003479) is less than itself. Its deficiency is 7481158482

Bases of 21348161961

• Binary: 10011111000011100110001100110101001₂
• Hexadecimal: 0x4F87319A9
• Base-36: 9T2576X

Squares and roots of 21348161961

• 21348161961 squared (21348161961²) is 455744019113087365521
• 21348161961 cubed (21348161961³) is 9729297132783268653885115146681
• The square root of 21348161961 is 146110.1021866729
• The cube root of 21348161961 is 2774.0875483325

Scales and comparisons

• 21,348,161,961 seconds is equal to 678 years, 41 weeks, 6 days, 4 hours, 59 minutes, 21 seconds.
• To count from 1 to 21,348,161,961 would take you about one thousand, three hundred fifty-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 21348161961 cubic inches would be around 231.2 feet tall.

Recreational maths with 21348161961

• 21348161961 backwards is 16916184312
• The number of decimal digits it has is: 11
• The sum of 21348161961's digits is 42
• More coming soon!