21331124490

Names of 21331124490

• Cardinal: 21331124490 can be written as Twenty-one billion, three hundred thirty-one million, one hundred twenty-four thousand, four hundred ninety.

Scientific notation

• Scientific notation: 2.133112449 × 10¹⁰

Factors of 21331124490

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7616

Divisors of 21331124490

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 31 39 62 65 78 93 130 155 186 195 241 310 390 403 465 482 723 806 930 1205 1209 1446 2015 2410 2418 3133 3615 4030 6045 6266 7230 7321 7471 9399 12090 14642 14942 15665 18798 21963 22413 31330 36605 37355 43926 44826 46995 73210 74710 93990 95173 97123 109815 112065 190346 194246 219630 224130 226951 285519 291369 453902 475865 485615 571038 582738 680853 951730 971230 1134755 1361706 1427595 1456845 1764361 2269510 2855190 2913690 2950363 3404265 3528722 5293083 5900726 6808530 8821805 8851089 10586166 14751815 17643610 17702178 22936693 26465415 29503630 44255445 45873386 52930830 54695191 68810079 88510890 109390382 114683465 137620158 164085573 229366930 273475955 328171146 344050395 546951910 688100790 711037483 820427865 1422074966 1640855730 2133112449 3555187415 4266224898 7110374830 10665562245 21331124490
• Sum of all divisors σ(n): 57155180544
• Sum of proper divisors (its aliquot sum) s(n): 35824056054
• 21331124490 is an abundant number, because the sum of its proper divisors (35824056054) is greater than itself. Its abundance is 14492931564

Bases of 21331124490

• Binary: 10011110111011011110010000100001010₂
• Hexadecimal: 0x4F76F210A
• Base-36: 9SS00ZU

Squares and roots of 21331124490

• 21331124490 squared (21331124490²) is 455016872007877760100
• 21331124490 cubed (21331124490³) is 9706021541850436761395454849000
• The square root of 21331124490 is 146051.7870140589
• The cube root of 21331124490 is 2773.3493736969

Scales and comparisons

• 21,331,124,490 seconds is equal to 678 years, 13 weeks, 5 days, 21 minutes, 30 seconds.
• To count from 1 to 21,331,124,490 would take you about one thousand, three hundred fifty-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 21331124490 cubic inches would be around 231.1 feet tall.

Recreational maths with 21331124490

• 21331124490 backwards is 09442113312
• 21331124490 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21331124490's digits is 30
• More coming soon!