21028522317

Names of 21028522317

• Cardinal: 21028522317 can be written as Twenty-one billion, twenty-eight million, five hundred twenty-two thousand, three hundred seventeen.

Scientific notation

• Scientific notation: 2.1028522317 × 10¹⁰

Factors of 21028522317

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2682

Divisors of 21028522317

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 11 17 23 33 37 51 69 111 187 253 289 391 407 561 629 759 851 867 1173 1221 1887 2553 2591 3179 4301 6647 6919 7773 9361 9537 10693 12903 14467 19941 20757 28083 28501 32079 43401 44047 59593 73117 85503 95867 117623 132141 159137 178779 219351 245939 287601 352869 477411 484517 655523 737817 748799 1013081 1054537 1453551 1629739 1966569 2204941 2246397 2705329 3039243 3163611 4889217 6614823 8115987 8236789 11143891 17222377 17927129 24254351 24710367 27705563 33431673 37483997 51667131 53781387 72763053 83116689 112451991 189446147 304761193 412323967 568338441 637227949 914283579 1236971901 1911683847 7009507439 21028522317
• Sum of all divisors σ(n): 34834489344
• Sum of proper divisors (its aliquot sum) s(n): 13805967027
• 21028522317 is a deficient number, because the sum of its proper divisors (13805967027) is less than itself. Its deficiency is 7222555290

Bases of 21028522317

• Binary: 10011100101011001011100100101001101₂
• Hexadecimal: 0x4E565C94D
• Base-36: 9NRU7NX

Squares and roots of 21028522317

• 21028522317 squared (21028522317²) is 442198750836567048489
• 21028522317 cubed (21028522317³) is 9298786300516272598817757629013
• The square root of 21028522317 is 145012.1454120309
• The cube root of 21028522317 is 2760.1726733755

Scales and comparisons

• 21,028,522,317 seconds is equal to 668 years, 33 weeks, 2 days, 16 hours, 11 minutes, 57 seconds.
• To count from 1 to 21,028,522,317 would take you about one thousand, three 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 21028522317 cubic inches would be around 230 feet tall.

Recreational maths with 21028522317

• 21028522317 backwards is 71322582012
• 21028522317 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21028522317's digits is 33
• More coming soon!