21408203610

Names of 21408203610

• Cardinal: 21408203610 can be written as Twenty-one billion, four hundred eight million, two hundred three thousand, six hundred ten.

Scientific notation

• Scientific notation: 2.140820361 × 10¹⁰

Factors of 21408203610

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 160

Divisors of 21408203610

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 53 54 81 90 97 106 135 159 162 194 265 270 291 318 405 477 485 530 582 795 810 873 954 970 1431 1455 1590 1746 2385 2619 2809 2862 2910 4293 4365 4770 5141 5238 5618 7155 7857 8427 8586 8730 9409 10282 13095 14045 14310 15423 15714 16854 18818 21465 25281 25705 26190 28090 28227 30846 39285 42135 42930 46269 47045 50562 51410 56454 75843 77115 78570 84270 84681 92538 94090 126405 138807 141135 151686 154230 169362 227529 231345 252810 254043 272473 277614 282270 379215 416421 423405 455058 462690 498677 508086 544946 694035 758430 762129 817419 832842 846810 997354 1137645 1270215 1362365 1388070 1496031 1524258 1634838 2082105 2275290 2452257 2493385 2540430 2724730 2992062 3810645 4087095 4164210 4488093 4904514 4986770 7356771 7480155 7621290 8174190 8976186 12261285 13464279 14713542 14960310 22070313 22440465 24522570 26429881 26928558 36783855 40392837 44140626 44880930 52859762 67321395 73567710 79289643 80785674 110351565 132149405 134642790 158579286 201964185 220703130 237868929 264298810 396448215 403928370 475737858 713606787 792896430 1189344645 1427213574 2140820361 2378689290 3568033935 4281640722 7136067870 10704101805 21408203610
• Sum of all divisors σ(n): 59281982298
• Sum of proper divisors (its aliquot sum) s(n): 37873778688
• 21408203610 is an abundant number, because the sum of its proper divisors (37873778688) is greater than itself. Its abundance is 16465575078

Bases of 21408203610

• Binary: 10011111100000001110100001101011010₂
• Hexadecimal: 0x4FC07435A
• Base-36: 9U1W3MI

Squares and roots of 21408203610

• 21408203610 squared (21408203610²) is 458311181807217032100
• 21408203610 cubed (21408203610³) is 9811619096868629990656705881000
• The square root of 21408203610 is 146315.4250583307
• The cube root of 21408203610 is 2776.6858186049

Scales and comparisons

• 21,408,203,610 seconds is equal to 680 years, 37 weeks, 1 day, 3 hours, 13 minutes, 30 seconds.
• To count from 1 to 21,408,203,610 would take you about one thousand, three hundred sixty-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 21408203610 cubic inches would be around 231.4 feet tall.

Recreational maths with 21408203610

• 21408203610 backwards is 01630280412
• 21408203610 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21408203610's digits is 27
• More coming soon!