216218380

Names of 216218380

• Cardinal: 216218380 can be written as Two hundred sixteen million, two hundred eighteen thousand, three hundred eighty.

Scientific notation

• Scientific notation: 2.1621838 × 10⁸

Factors of 216218380

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 207

Divisors of 216218380

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 37 49 67 70 74 89 98 134 140 148 178 185 196 245 259 268 335 356 370 445 469 490 518 623 670 740 890 938 980 1036 1246 1295 1340 1780 1813 1876 2345 2479 2492 2590 3115 3283 3293 3626 4361 4690 4958 5180 5963 6230 6566 6586 7252 8722 9065 9380 9916 11926 12395 12460 13132 13172 16415 16465 17353 17444 18130 21805 23051 23852 24790 29815 32830 32930 34706 36260 41741 43610 46102 49580 59630 65660 65860 69412 83482 86765 87220 92204 115255 119260 121471 161357 166964 173530 208705 220631 230510 242942 292187 322714 347060 417410 441262 461020 485884 584374 607355 645428 806785 834820 882524 1103155 1168748 1214710 1460935 1544417 1613570 2206310 2429420 2921870 3088834 3227140 4412620 5843740 6177668 7722085 10810919 15444170 21621838 30888340 43243676 54054595 108109190 216218380
• Sum of all divisors σ(n): 556748640
• Sum of proper divisors (its aliquot sum) s(n): 340530260
• 216218380 is an abundant number, because the sum of its proper divisors (340530260) is greater than itself. Its abundance is 124311880

Bases of 216218380

• Binary: 1100111000110011101100001100₂
• Hexadecimal: 0xCE33B0C
• Base-36: 3KQB64

Squares and roots of 216218380

• 216218380 squared (216218380²) is 46750387849824400
• 216218380 cubed (216218380³) is 10108293125260715052472000
• The square root of 216218380 is 14704.3660182957
• The cube root of 216218380 is 600.2021355979

Scales and comparisons

• 216,218,380 seconds is equal to 6 years, 45 weeks, 3 days, 12 hours, 39 minutes, 40 seconds.
• To count from 1 to 216,218,380 would take you about ten years!

  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 216218380 cubic inches would be around 50 feet tall.

Recreational maths with 216218380

• 216218380 backwards is 083812612
• The number of decimal digits it has is: 9
• The sum of 216218380's digits is 31
• More coming soon!