21244734

Names of 21244734

• Cardinal: 21244734 can be written as Twenty-one million, two hundred forty-four thousand, seven hundred thirty-four.

Scientific notation

• Scientific notation: 2.1244734 × 10⁷

Factors of 21244734

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 80

Divisors of 21244734

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 31 37 42 49 54 62 63 74 93 98 111 126 147 186 189 217 222 259 279 294 333 343 378 434 441 518 558 651 666 686 777 837 882 999 1029 1147 1302 1323 1519 1554 1674 1813 1953 1998 2058 2294 2331 2646 3038 3087 3441 3626 3906 4557 4662 5439 5859 6174 6882 6993 8029 9114 9261 10323 10633 10878 11718 12691 13671 13986 16058 16317 18522 20646 21266 24087 25382 27342 30969 31899 32634 38073 41013 48174 48951 56203 61938 63798 72261 76146 82026 95697 97902 112406 114219 144522 168609 191394 216783 228438 287091 337218 342657 393421 433566 505827 574182 685314 786842 1011654 1180263 1517481 2360526 3034962 3540789 7081578 10622367 21244734
• Sum of all divisors σ(n): 58368000
• Sum of proper divisors (its aliquot sum) s(n): 37123266
• 21244734 is an abundant number, because the sum of its proper divisors (37123266) is greater than itself. Its abundance is 15878532

Bases of 21244734

• Binary: 1010001000010101100111110₂
• Hexadecimal: 0x1442B3E
• Base-36: CNCJI

Squares and roots of 21244734

• 21244734 squared (21244734²) is 451338722730756
• 21244734 cubed (21244734³) is 9588571108314664838904
• The square root of 21244734 is 4609.2010153607
• The cube root of 21244734 is 276.9600310727

Scales and comparisons

• 21,244,734 seconds is equal to 35 weeks, 21 hours, 18 minutes, 54 seconds.
• To count from 1 to 21,244,734 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 21244734 cubic inches would be around 23.1 feet tall.

Recreational maths with 21244734

• 21244734 backwards is 43744212
• 21244734 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21244734's digits is 27
• More coming soon!