21089429284

Names of 21089429284

• Cardinal: 21089429284 can be written as Twenty-one billion, eighty-nine million, four hundred twenty-nine thousand, two hundred eighty-four.

Scientific notation

• Scientific notation: 2.1089429284 × 10¹⁰

Factors of 21089429284

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 84

Divisors of 21089429284

• Number of divisors d(n): 243
• Complete list of divisors:
  1 2 4 7 11 14 22 23 28 41 44 46 49 77 82 92 98 121 154 161 164 196 242 253 287 308 322 451 484 506 529 539 574 644 847 902 943 1012 1058 1078 1127 1148 1681 1694 1771 1804 1886 2009 2116 2156 2254 2783 3157 3362 3388 3542 3703 3772 4018 4508 4961 5566 5819 5929 6314 6601 6724 7084 7406 8036 9922 10373 11132 11638 11767 11858 12397 12628 13202 14812 18491 19481 19844 20746 21689 22099 23276 23534 23716 24794 25921 26404 34727 36982 38663 38962 40733 41492 43378 44198 46207 47068 49588 51842 64009 69454 72611 73964 77326 77924 81466 82369 86756 88396 92414 103684 114103 128018 129437 136367 138908 145222 151823 154652 162932 164738 184828 203401 228206 238579 243089 256036 258874 270641 272734 285131 290444 303646 329476 406802 425293 448063 456412 477158 486178 508277 517748 541282 545468 570262 607292 798721 813604 850586 889249 896126 906059 954316 972356 1016554 1062761 1082564 1140524 1423807 1597442 1670053 1701172 1778498 1792252 1812118 1894487 2033108 2125522 2624369 2847614 2977051 3136441 3194884 3340106 3556996 3624236 3788974 4251044 4678223 5248738 5591047 5695228 5954102 6224743 6272882 6680212 7577948 9356446 9781739 9966649 10497476 11182094 11690371 11908204 12449486 12545764 18370583 18712892 19563478 19933298 20839357 22364188 23380742 24898972 32747561 36741166 39126956 39866596 41678714 43573201 46761484 65495122 68472173 73482332 83357428 87146402 107599129 128594081 130990244 136944346 174292804 215198258 229232927 257188162 273888692 430396516 458465854 479305211 514376324 753193903 916931708 958610422 1506387806 1917220844 3012775612 5272357321 10544714642 21089429284
• Sum of all divisors σ(n): 50563245873
• Sum of proper divisors (its aliquot sum) s(n): 29473816589
• 21089429284 is an abundant number, because the sum of its proper divisors (29473816589) is greater than itself. Its abundance is 8384387305

Bases of 21089429284

• Binary: 10011101001000001110010011100100100₂
• Hexadecimal: 0x4E9072724
• Base-36: 9OS3NS4

Squares and roots of 21089429284

• 21089429284 squared (21089429284²) is 444764027524836752656
• 21089429284 cubed (21089429284³) is 9379819506552074248782911178304
• 21089429284 is a perfect square number. Its square root is 145222
• The cube root of 21089429284 is 2762.8349574227

Scales and comparisons

• 21,089,429,284 seconds is equal to 670 years, 30 weeks, 14 hours, 48 minutes, 4 seconds.
• To count from 1 to 21,089,429,284 would take you about one thousand, three hundred forty-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 21089429284 cubic inches would be around 230.2 feet tall.

Recreational maths with 21089429284

• 21089429284 backwards is 48292498012
• 21089429284 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21089429284's digits is 49
• More coming soon!