21341247640

Names of 21341247640

• Cardinal: 21341247640 can be written as Twenty-one billion, three hundred forty-one million, two hundred forty-seven thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.134124764 × 10¹⁰

Factors of 21341247640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1894

Divisors of 21341247640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 19 20 38 40 76 95 127 152 190 254 380 508 635 760 1016 1270 1741 2413 2540 3482 4826 5080 6964 8705 9652 12065 13928 16129 17410 19304 24130 32258 33079 34820 48260 64516 66158 69640 80645 96520 129032 132316 161290 165395 221107 264632 306451 322580 330790 442214 612902 645160 661580 884428 1105535 1225804 1323160 1532255 1768856 2211070 2451608 3064510 4201033 4422140 6129020 8402066 8844280 12258040 16804132 21005165 28080589 33608264 42010330 56161178 84020660 112322356 140402945 168041320 224644712 280805890 533531191 561611780 1067062382 1123223560 2134124764 2667655955 4268249528 5335311910 10670623820 21341247640
• Sum of all divisors σ(n): 50975449200
• Sum of proper divisors (its aliquot sum) s(n): 29634201560
• 21341247640 is an abundant number, because the sum of its proper divisors (29634201560) is greater than itself. Its abundance is 8292953920

Bases of 21341247640

• Binary: 10011111000000010011001100010011000₂
• Hexadecimal: 0x4F8099898
• Base-36: 9SY102G

Squares and roots of 21341247640

• 21341247640 squared (21341247640²) is 455448850831805569600
• 21341247640 cubed (21341247640³) is 9719846712954982649164855744000
• The square root of 21341247640 is 146086.4389325717
• The cube root of 21341247640 is 2773.7880221093

Scales and comparisons

• 21,341,247,640 seconds is equal to 678 years, 30 weeks, 3 days, 4 hours, 20 minutes, 40 seconds.
• To count from 1 to 21,341,247,640 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 21341247640 cubic inches would be around 231.1 feet tall.

Recreational maths with 21341247640

• 21341247640 backwards is 04674214312
• The number of decimal digits it has is: 11
• The sum of 21341247640's digits is 34
• More coming soon!