21093800

Names of 21093800

• Cardinal: 21093800 can be written as Twenty-one million, ninety-three thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10938 × 10⁷

Factors of 21093800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 107

Divisors of 21093800

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 19 20 25 26 28 35 38 40 50 52 56 61 65 70 76 91 95 100 104 122 130 133 140 152 175 182 190 200 244 247 260 266 280 305 325 350 364 380 427 455 475 488 494 520 532 610 650 665 700 728 760 793 854 910 950 988 1064 1159 1220 1235 1300 1330 1400 1525 1586 1708 1729 1820 1900 1976 2135 2275 2318 2440 2470 2600 2660 3050 3172 3325 3416 3458 3640 3800 3965 4270 4550 4636 4940 5320 5551 5795 6100 6175 6344 6650 6916 7930 8113 8540 8645 9100 9272 9880 10675 11102 11590 12200 12350 13300 13832 15067 15860 16226 17080 17290 18200 19825 21350 22204 23180 24700 26600 27755 28975 30134 31720 32452 34580 39650 40565 42700 43225 44408 46360 49400 55510 57950 60268 64904 69160 75335 79300 81130 85400 86450 105469 111020 115900 120536 138775 150670 158600 162260 172900 202825 210938 222040 231800 277550 301340 324520 345800 376675 405650 421876 527345 555100 602680 753350 811300 843752 1054690 1110200 1506700 1622600 2109380 2636725 3013400 4218760 5273450 10546900 21093800
• Sum of all divisors σ(n): 64579200
• Sum of proper divisors (its aliquot sum) s(n): 43485400
• 21093800 is an abundant number, because the sum of its proper divisors (43485400) is greater than itself. Its abundance is 22391600

Bases of 21093800

• Binary: 1010000011101110110101000₂
• Hexadecimal: 0x141DDA8
• Base-36: CK42W

Squares and roots of 21093800

• 21093800 squared (21093800²) is 444948398440000
• 21093800 cubed (21093800³) is 9385652527013672000000
• The square root of 21093800 is 4592.7987110257
• The cube root of 21093800 is 276.3025807109

Scales and comparisons

• 21,093,800 seconds is equal to 34 weeks, 6 days, 3 hours, 23 minutes, 20 seconds.
• To count from 1 to 21,093,800 would take you about two 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 21093800 cubic inches would be around 23 feet tall.

Recreational maths with 21093800

• 21093800 backwards is 00839012
• The number of decimal digits it has is: 8
• The sum of 21093800's digits is 23
• More coming soon!