21442680

Names of 21442680

• Cardinal: 21442680 can be written as Twenty-one million, four hundred forty-two thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.144268 × 10⁷

Factors of 21442680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 211

Divisors of 21442680

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 67 70 72 84 90 105 120 126 127 134 140 168 180 201 210 252 254 268 280 315 335 360 381 402 420 469 504 508 536 603 630 635 670 762 804 840 889 938 1005 1016 1143 1206 1260 1270 1340 1407 1524 1608 1778 1876 1905 2010 2286 2345 2412 2520 2540 2667 2680 2814 3015 3048 3556 3752 3810 4020 4221 4445 4572 4690 4824 5080 5334 5628 5715 6030 7035 7112 7620 8001 8040 8442 8509 8890 9144 9380 10668 11256 11430 12060 13335 14070 15240 16002 16884 17018 17780 18760 21105 21336 22860 24120 25527 26670 28140 32004 33768 34036 35560 40005 42210 42545 45720 51054 53340 56280 59563 64008 68072 76581 80010 84420 85090 102108 106680 119126 127635 153162 160020 168840 170180 178689 204216 238252 255270 297815 306324 320040 340360 357378 382905 476504 510540 536067 595630 612648 714756 765810 893445 1021080 1072134 1191260 1429512 1531620 1786890 2144268 2382520 2680335 3063240 3573780 4288536 5360670 7147560 10721340 21442680
• Sum of all divisors σ(n): 81469440
• Sum of proper divisors (its aliquot sum) s(n): 60026760
• 21442680 is an abundant number, because the sum of its proper divisors (60026760) is greater than itself. Its abundance is 38584080

Bases of 21442680

• Binary: 1010001110011000001111000₂
• Hexadecimal: 0x1473078
• Base-36: CRLA0

Squares and roots of 21442680

• 21442680 squared (21442680²) is 459788525582400
• 21442680 cubed (21442680³) is 9859098221735216832000
• The square root of 21442680 is 4630.6241479957
• The cube root of 21442680 is 277.8175570883

Scales and comparisons

• 21,442,680 seconds is equal to 35 weeks, 3 days, 4 hours, 18 minutes.
• To count from 1 to 21,442,680 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 21442680 cubic inches would be around 23.2 feet tall.

Recreational maths with 21442680

• 21442680 backwards is 08624412
• The number of decimal digits it has is: 8
• The sum of 21442680's digits is 27
• More coming soon!