21071091712

Names of 21071091712

• Cardinal: 21071091712 can be written as Twenty-one billion, seventy-one million, ninety-one thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 2.1071091712 × 10¹⁰

Factors of 21071091712

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 8703

Divisors of 21071091712

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 109 128 176 218 256 352 436 512 704 872 1024 1199 1408 1744 2048 2398 2816 3488 4796 5632 6976 8581 9592 11264 13952 17162 19184 22528 27904 34324 38368 55808 68648 76736 94391 111616 137296 153472 188782 223232 274592 306944 377564 549184 613888 755128 935329 1098368 1227776 1510256 1870658 2196736 2455552 3020512 3741316 4393472 6041024 7482632 8786944 10288619 12082048 14965264 17573888 20577238 24164096 29930528 41154476 48328192 59861056 82308952 96656384 119722112 164617904 193312768 239444224 329235808 478888448 658471616 957776896 1316943232 1915553792 2633886464 5267772928 10535545856 21071091712
• Sum of all divisors σ(n): 46389142800
• Sum of proper divisors (its aliquot sum) s(n): 25318051088
• 21071091712 is an abundant number, because the sum of its proper divisors (25318051088) is greater than itself. Its abundance is 4246959376

Bases of 21071091712

• Binary: 10011100111111011110101100000000000₂
• Hexadecimal: 0x4E7EF5800
• Base-36: 9OH6MF4

Squares and roots of 21071091712

• 21071091712 squared (21071091712²) is 443990905935515090944
• 21071091712 cubed (21071091712³) is 9355373098261203639241044656128
• The square root of 21071091712 is 145158.8499265545
• The cube root of 21071091712 is 2762.0339498715

Scales and comparisons

• 21,071,091,712 seconds is equal to 669 years, 51 weeks, 5 days, 9 hours, 1 minute, 52 seconds.
• To count from 1 to 21,071,091,712 would take you about one thousand, three hundred thirty-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 21071091712 cubic inches would be around 230.2 feet tall.

Recreational maths with 21071091712

• 21071091712 backwards is 21719017012
• The number of decimal digits it has is: 11
• The sum of 21071091712's digits is 31
• More coming soon!