216393840

Names of 216393840

• Cardinal: 216393840 can be written as Two hundred sixteen million, three hundred ninety-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.1639384 × 10⁸

Factors of 216393840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 463

Divisors of 216393840

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 36 39 40 45 48 52 60 61 65 72 78 80 90 104 117 120 122 130 144 156 180 183 195 208 234 240 244 260 305 312 360 366 379 390 468 488 520 549 585 610 624 720 732 758 780 793 915 936 976 1040 1098 1137 1170 1220 1464 1516 1560 1586 1830 1872 1895 2196 2274 2340 2379 2440 2745 2928 3032 3120 3172 3411 3660 3790 3965 4392 4548 4680 4758 4880 4927 5490 5685 6064 6344 6822 7137 7320 7580 7930 8784 9096 9360 9516 9854 10980 11370 11895 12688 13644 14274 14640 14781 15160 15860 17055 18192 19032 19708 21960 22740 23119 23790 24635 27288 28548 29562 30320 31720 34110 35685 38064 39416 43920 44343 45480 46238 47580 49270 54576 57096 59124 63440 68220 69357 71370 73905 78832 88686 90960 92476 95160 98540 114192 115595 118248 136440 138714 142740 147810 177372 184952 190320 197080 208071 221715 231190 236496 272880 277428 285480 295620 300547 346785 354744 369904 394160 416142 443430 462380 554856 570960 591240 601094 693570 709488 832284 886860 901641 924760 1040355 1109712 1182480 1202188 1387140 1502735 1664568 1773720 1803282 1849520 2080710 2404376 2704923 2774280 3005470 3329136 3547440 3606564 4161420 4508205 4808752 5409846 5548560 6010940 7213128 8322840 9016410 10819692 12021880 13524615 14426256 16645680 18032820 21639384 24043760 27049230 36065640 43278768 54098460 72131280 108196920 216393840
• Sum of all divisors σ(n): 797553120
• Sum of proper divisors (its aliquot sum) s(n): 581159280
• 216393840 is an abundant number, because the sum of its proper divisors (581159280) is greater than itself. Its abundance is 364765440

Bases of 216393840

• Binary: 1100111001011110100001110000₂
• Hexadecimal: 0xCE5E870
• Base-36: 3KU2K0

Squares and roots of 216393840

• 216393840 squared (216393840²) is 46826293989945600
• 216393840 cubed (216393840³) is 10132921569453249775104000
• The square root of 216393840 is 14710.3310635757
• The cube root of 216393840 is 600.3644452547

Scales and comparisons

• 216,393,840 seconds is equal to 6 years, 45 weeks, 5 days, 13 hours, 24 minutes.
• To count from 1 to 216,393,840 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 216393840 cubic inches would be around 50 feet tall.

Recreational maths with 216393840

• 216393840 backwards is 048393612
• 216393840 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 216393840's digits is 36
• More coming soon!