16221216816

Names of 16221216816

• Cardinal: 16221216816 can be written as Sixteen billion, two hundred twenty-one million, two hundred sixteen thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.6221216816 × 10¹⁰

Factors of 16221216816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 61698

Divisors of 16221216816

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 29 36 42 48 54 56 58 63 72 81 84 87 108 112 116 126 144 162 168 174 189 203 216 232 252 261 324 336 348 378 406 432 464 504 522 567 609 648 696 756 783 812 1008 1044 1134 1218 1296 1392 1512 1566 1624 1827 2088 2268 2349 2436 3024 3132 3248 3654 4176 4536 4698 4872 5481 6264 7308 9072 9396 9744 10962 12528 14616 16443 18792 21924 29232 32886 37584 43848 61657 65772 87696 123314 131544 184971 246628 263088 369942 431599 493256 554913 739884 863198 986512 1109826 1294797 1479768 1664739 1726396 1788053 2219652 2589594 2959536 3329478 3452792 3576106 3884391 4439304 4994217 5179188 5364159 6658956 6905584 7152212 7768782 8878608 9988434 10358376 10728318 11653173 12516371 13317912 14304424 15537564 16092477 19976868 20716752 21456636 23306346 25032742 26635824 28608848 31075128 32184954 34959519 37549113 39953736 42913272 46612692 48277431 50065484 62150256 64369908 69919038 75098226 79907472 85826544 93225384 96554862 100130968 112647339 128739816 139838076 144832293 150196452 186450768 193109724 200261936 225294678 257479632 279676152 289664586 300392904 337942017 386219448 450589356 559352304 579329172 600785808 675884034 772438896 901178712 1013826051 1158658344 1351768068 1802357424 2027652102 2317316688 2703536136 4055304204 5407072272 8110608408 16221216816
• Sum of all divisors σ(n): 55506997920
• Sum of proper divisors (its aliquot sum) s(n): 39285781104
• 16221216816 is an abundant number, because the sum of its proper divisors (39285781104) is greater than itself. Its abundance is 23064564288

Bases of 16221216816

• Binary: 1111000110110111000010000000110000₂
• Hexadecimal: 0x3C6DC2030
• Base-36: 7G9OZ00

Squares and roots of 16221216816

• 16221216816 squared (16221216816²) is 263127874991681177856
• 16221216816 cubed (16221216816³) is 4268254310573404582348434026496
• The square root of 16221216816 is 127362.5408666143
• The cube root of 16221216816 is 2531.4021409129

Scales and comparisons

• 16,221,216,816 seconds is equal to 515 years, 40 weeks, 5 days, 13 hours, 33 minutes, 36 seconds.
• To count from 1 to 16,221,216,816 would take you about one thousand and thirty-one 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 16221216816 cubic inches would be around 211 feet tall.

Recreational maths with 16221216816

• 16221216816 backwards is 61861212261
• 16221216816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 16221216816's digits is 36
• More coming soon!