21443800

Names of 21443800

• Cardinal: 21443800 can be written as Twenty-one million, four hundred forty-three thousand, eight hundred.

Scientific notation

• Scientific notation: 2.14438 × 10⁷

Factors of 21443800

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

Divisors of 21443800

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 20 25 28 34 35 40 50 53 56 68 70 85 100 106 119 136 140 170 175 200 212 238 265 280 289 340 350 371 424 425 476 530 578 595 680 700 742 850 901 952 1060 1156 1190 1325 1400 1445 1484 1700 1802 1855 2023 2120 2312 2380 2650 2890 2968 2975 3400 3604 3710 4046 4505 4760 5300 5780 5950 6307 7208 7225 7420 8092 9010 9275 10115 10600 11560 11900 12614 14450 14840 15317 16184 18020 18550 20230 22525 23800 25228 28900 30634 31535 36040 37100 40460 45050 50456 50575 57800 61268 63070 74200 76585 80920 90100 101150 107219 122536 126140 153170 157675 180200 202300 214438 252280 306340 315350 382925 404600 428876 536095 612680 630700 765850 857752 1072190 1261400 1531700 2144380 2680475 3063400 4288760 5360950 10721900 21443800
• Sum of all divisors σ(n): 61670160
• Sum of proper divisors (its aliquot sum) s(n): 40226360
• 21443800 is an abundant number, because the sum of its proper divisors (40226360) is greater than itself. Its abundance is 18782560

Bases of 21443800

• Binary: 1010001110011010011011000₂
• Hexadecimal: 0x14734D8
• Base-36: CRM54

Squares and roots of 21443800

• 21443800 squared (21443800²) is 459836558440000
• 21443800 cubed (21443800³) is 9860643191875672000000
• The square root of 21443800 is 4630.7450804379
• The cube root of 21443800 is 277.8223940187

Scales and comparisons

• 21,443,800 seconds is equal to 35 weeks, 3 days, 4 hours, 36 minutes, 40 seconds.
• To count from 1 to 21,443,800 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 21443800 cubic inches would be around 23.2 feet tall.

Recreational maths with 21443800

• 21443800 backwards is 00834412
• The number of decimal digits it has is: 8
• The sum of 21443800's digits is 22
• More coming soon!