21043040408

Names of 21043040408

• Cardinal: 21043040408 can be written as Twenty-one billion, forty-three million, forty thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.1043040408 × 10¹⁰

Factors of 21043040408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 300

Divisors of 21043040408

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 13 26 41 47 52 82 94 104 164 169 188 197 328 338 376 394 533 611 676 788 1066 1222 1352 1576 1681 1927 2132 2444 2561 3362 3854 4264 4888 5122 6724 6929 7708 7943 8077 9259 10244 13448 13858 15416 15886 16154 18518 20488 21853 25051 27716 31772 32308 33293 37036 43706 50102 55432 63544 64616 66586 74072 79007 87412 100204 105001 120367 133172 158014 174824 200408 210002 240734 266344 284089 316028 325663 331157 379619 420004 481468 568178 632056 651326 662314 759238 840008 962936 1027091 1136356 1302652 1324628 1365013 1518476 1564771 2054182 2272712 2605304 2649256 2730026 3036952 3129542 4108364 4305041 4935047 5460052 6259084 8216728 8610082 9870094 10920104 12518168 13352183 15564379 17220164 19740188 26704366 31128758 34440328 39480376 53408732 55965533 62257516 64155611 106817464 111931066 124515032 128311222 202336927 223862132 256622444 404673854 447724264 513244888 809347708 1618695416 2630380051 5260760102 10521520204 21043040408
• Sum of all divisors σ(n): 44950451040
• Sum of proper divisors (its aliquot sum) s(n): 23907410632
• 21043040408 is an abundant number, because the sum of its proper divisors (23907410632) is greater than itself. Its abundance is 2864370224

Bases of 21043040408

• Binary: 10011100110010000110101000010011000₂
• Hexadecimal: 0x4E6435098
• Base-36: 9O0HDW8

Squares and roots of 21043040408

• 21043040408 squared (21043040408²) is 442809549612720806464
• 21043040408 cubed (21043040408³) is 9318059245548764681244299597312
• The square root of 21043040408 is 145062.1949647805
• The cube root of 21043040408 is 2760.8077349517

Scales and comparisons

• 21,043,040,408 seconds is equal to 669 years, 5 weeks, 2 days, 17 hours, 8 seconds.
• To count from 1 to 21,043,040,408 would take you about one thousand, three hundred thirty-eight 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 21043040408 cubic inches would be around 230.1 feet tall.

Recreational maths with 21043040408

• 21043040408 backwards is 80404034012
• 21043040408 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21043040408's digits is 26
• More coming soon!