21442960

Names of 21442960

• Cardinal: 21442960 can be written as Twenty-one million, four hundred forty-two thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.144296 × 10⁷

Factors of 21442960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 84

Divisors of 21442960

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 55 56 59 70 77 80 88 110 112 118 140 154 176 220 236 280 295 308 385 413 440 472 560 590 616 649 770 826 880 944 1180 1232 1298 1540 1652 2065 2360 2596 3080 3245 3304 3481 4130 4543 4720 5192 6160 6490 6608 6962 8260 9086 10384 12980 13924 16520 17405 18172 22715 24367 25960 27848 33040 34810 36344 38291 45430 48734 51920 55696 69620 72688 76582 90860 97468 121835 139240 153164 181720 191455 194936 243670 268037 278480 306328 363440 382910 389872 487340 536074 612656 765820 974680 1072148 1340185 1531640 1949360 2144296 2680370 3063280 4288592 5360740 10721480 21442960
• Sum of all divisors σ(n): 63228096
• Sum of proper divisors (its aliquot sum) s(n): 41785136
• 21442960 is an abundant number, because the sum of its proper divisors (41785136) is greater than itself. Its abundance is 20342176

Bases of 21442960

• Binary: 1010001110011000110010000₂
• Hexadecimal: 0x1473190
• Base-36: CRLHS

Squares and roots of 21442960

• 21442960 squared (21442960²) is 459800533561600
• 21442960 cubed (21442960³) is 9859484449140046336000
• The square root of 21442960 is 4630.6543814023
• The cube root of 21442960 is 277.8187663367

Scales and comparisons

• 21,442,960 seconds is equal to 35 weeks, 3 days, 4 hours, 22 minutes, 40 seconds.
• To count from 1 to 21,442,960 would take you about six hours!

  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 21442960 cubic inches would be around 23.2 feet tall.

Recreational maths with 21442960

• 21442960 backwards is 06924412
• 21442960 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21442960's digits is 28
• More coming soon!