21221821404

Names of 21221821404

• Cardinal: 21221821404 can be written as Twenty-one billion, two hundred twenty-one million, eight hundred twenty-one thousand, four hundred four.

Scientific notation

• Scientific notation: 2.1221821404 × 10¹⁰

Factors of 21221821404

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 388124

Divisors of 21221821404

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 31 36 42 49 62 63 84 93 98 124 126 147 186 196 217 252 279 294 372 434 441 558 588 651 868 882 1116 1302 1519 1764 1953 2604 3038 3906 4557 6076 7812 9114 13671 18228 27342 54684 388081 776162 1164243 1552324 2328486 2716567 3492729 4656972 5433134 6985458 8149701 10866268 12030511 13970916 16299402 19015969 24061022 24449103 32598804 36091533 38031938 48122044 48898206 57047907 72183066 76063876 84213577 97796412 108274599 114095814 144366132 168427154 171143721 216549198 228191628 252640731 336854308 342287442 433098396 505281462 589495039 684574884 757922193 1010562924 1178990078 1515844386 1768485117 2357980156 3031688772 3536970234 5305455351 7073940468 10610910702 21221821404
• Sum of all divisors σ(n): 64415402688
• Sum of proper divisors (its aliquot sum) s(n): 43193581284
• 21221821404 is an abundant number, because the sum of its proper divisors (43193581284) is greater than itself. Its abundance is 21971759880

Bases of 21221821404

• Binary: 10011110000111010110100101111011100₂
• Hexadecimal: 0x4F0EB4BDC
• Base-36: 9QYXA70

Squares and roots of 21221821404

• 21221821404 squared (21221821404²) is 450365703703272531216
• 21221821404 cubed (21221821404³) is 9557580530477631067804966947264
• The square root of 21221821404 is 145677.1135216511
• The cube root of 21221821404 is 2768.6042747171

Scales and comparisons

• 21,221,821,404 seconds is equal to 674 years, 40 weeks, 6 days, 22 hours, 23 minutes, 24 seconds.
• To count from 1 to 21,221,821,404 would take you about one thousand, three hundred forty-nine 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 21221821404 cubic inches would be around 230.7 feet tall.

Recreational maths with 21221821404

• 21221821404 backwards is 40412812212
• The number of decimal digits it has is: 11
• The sum of 21221821404's digits is 27
• More coming soon!