21233408

Names of 21233408

• Cardinal: 21233408 can be written as Twenty-one million, two hundred thirty-three thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.1233408 × 10⁷

Factors of 21233408

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 67

Divisors of 21233408

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 41 56 64 68 82 112 119 128 136 164 224 238 256 272 287 289 328 448 476 544 574 578 656 697 896 952 1088 1148 1156 1312 1394 1792 1904 2023 2176 2296 2312 2624 2788 3808 4046 4352 4592 4624 4879 5248 5576 7616 8092 9184 9248 9758 10496 11152 11849 15232 16184 18368 18496 19516 22304 23698 30464 32368 36736 36992 39032 44608 47396 64736 73472 73984 78064 82943 89216 94792 129472 156128 165886 178432 189584 258944 312256 331772 379168 517888 624512 663544 758336 1249024 1327088 1516672 2654176 3033344 5308352 10616704 21233408
• Sum of all divisors σ(n): 52710672
• Sum of proper divisors (its aliquot sum) s(n): 31477264
• 21233408 is an abundant number, because the sum of its proper divisors (31477264) is greater than itself. Its abundance is 10243856

Bases of 21233408

• Binary: 1010000111111111100000000₂
• Hexadecimal: 0x143FF00
• Base-36: CN3SW

Squares and roots of 21233408

• 21233408 squared (21233408²) is 450857615294464
• 21233408 cubed (21233408³) is 9573243695454394253312
• The square root of 21233408 is 4607.9722221385
• The cube root of 21233408 is 276.9108046477

Scales and comparisons

• 21,233,408 seconds is equal to 35 weeks, 18 hours, 10 minutes, 8 seconds.
• To count from 1 to 21,233,408 would take you about four days!

  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 21233408 cubic inches would be around 23.1 feet tall.

Recreational maths with 21233408

• 21233408 backwards is 80433212
• The number of decimal digits it has is: 8
• The sum of 21233408's digits is 23
• More coming soon!