218341728

Names of 218341728

• Cardinal: 218341728 can be written as Two hundred eighteen million, three hundred forty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.18341728 × 10⁸

Factors of 218341728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 57

Divisors of 218341728

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 41 44 48 66 72 82 88 96 99 123 132 144 164 176 198 246 264 288 328 352 369 396 451 492 528 656 738 792 902 984 1056 1312 1353 1476 1584 1681 1804 1968 2706 2952 3168 3362 3608 3936 4059 5043 5412 5904 6724 7216 8118 10086 10824 11808 13448 14432 15129 16236 18491 20172 21648 26896 30258 32472 36982 40344 43296 53792 55473 60516 64944 68921 73964 80688 110946 121032 129888 137842 147928 161376 166419 206763 221892 242064 275684 295856 332838 413526 443784 484128 551368 591712 620289 665676 758131 827052 887568 1102736 1240578 1331352 1516262 1654104 1775136 2205472 2274393 2481156 2662704 3032524 3308208 4548786 4962312 5325408 6065048 6616416 6823179 9097572 9924624 12130096 13646358 18195144 19849248 24260192 27292716 36390288 54585432 72780576 109170864 218341728
• Sum of all divisors σ(n): 694289232
• Sum of proper divisors (its aliquot sum) s(n): 475947504
• 218341728 is an abundant number, because the sum of its proper divisors (475947504) is greater than itself. Its abundance is 257605776

Bases of 218341728

• Binary: 1101000000111010000101100000₂
• Hexadecimal: 0xD03A160
• Base-36: 3LZTK0

Squares and roots of 218341728

• 218341728 squared (218341728²) is 47673110186025984
• 218341728 cubed (218341728³) is 10409029257151314799460352
• The square root of 218341728 is 14776.3908989983
• The cube root of 218341728 is 602.1604778879

Scales and comparisons

• 218,341,728 seconds is equal to 6 years, 49 weeks, 2 hours, 28 minutes, 48 seconds.
• To count from 1 to 218,341,728 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 218341728 cubic inches would be around 50.2 feet tall.

Recreational maths with 218341728

• 218341728 backwards is 827143812
• 218341728 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 218341728's digits is 36
• More coming soon!