21494466072

Names of 21494466072

• Cardinal: 21494466072 can be written as Twenty-one billion, four hundred ninety-four million, four hundred sixty-six thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1494466072 × 10¹⁰

Factors of 21494466072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 416

Divisors of 21494466072

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 24 27 36 38 43 54 57 72 76 86 108 114 129 152 171 172 216 228 258 342 344 349 387 456 513 516 684 698 774 817 1026 1032 1047 1161 1368 1396 1548 1634 2052 2094 2322 2451 2792 3096 3141 3268 4104 4188 4644 4902 6282 6536 6631 7353 8376 9288 9423 9804 12564 13262 14706 15007 18846 19608 19893 22059 25128 26524 29412 30014 37692 39786 44118 45021 53048 58824 59679 60028 75384 79572 88236 90042 119358 120056 121801 135063 159144 176472 179037 180084 238716 243602 270126 285133 358074 360168 365403 405189 477432 487204 540252 570266 716148 730806 810378 855399 974408 1080504 1096209 1140532 1432296 1461612 1620756 1710798 2192418 2281064 2314219 2566197 2923224 3241512 3288627 3421596 4384836 4628438 5132394 5237443 6577254 6843192 6942657 7698591 8769672 9256876 10264788 10474886 13154508 13885314 15397182 15712329 18513752 20529576 20827971 20949772 26309016 27770628 30794364 31424658 41655942 41899544 47136987 55541256 61588728 62483913 62849316 83311884 94273974 99511417 124967826 125698632 141410961 166623768 188547948 199022834 249935652 282821922 298534251 377095896 398045668 499871304 565643844 597068502 796091336 895602753 1131287688 1194137004 1791205506 2388274008 2686808259 3582411012 5373616518 7164822024 10747233036 21494466072
• Sum of all divisors σ(n): 64495728000
• Sum of proper divisors (its aliquot sum) s(n): 43001261928
• 21494466072 is an abundant number, because the sum of its proper divisors (43001261928) is greater than itself. Its abundance is 21506795856

Bases of 21494466072

• Binary: 10100000001001010111000011000011000₂
• Hexadecimal: 0x5012B8618
• Base-36: 9VH9060

Squares and roots of 21494466072

• 21494466072 squared (21494466072²) is 462012071720359109184
• 21494466072 cubed (21494466072³) is 9930702800447689544011631605248
• The square root of 21494466072 is 146609.9112338589
• The cube root of 21494466072 is 2780.4102905297

Scales and comparisons

• 21,494,466,072 seconds is equal to 683 years, 23 weeks, 5 days, 13 hours, 1 minute, 12 seconds.
• To count from 1 to 21,494,466,072 would take you about one thousand, three hundred sixty-six 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 21494466072 cubic inches would be around 231.7 feet tall.

Recreational maths with 21494466072

• 21494466072 backwards is 27066449412
• The number of decimal digits it has is: 11
• The sum of 21494466072's digits is 45
• More coming soon!