21248984900

Names of 21248984900

• Cardinal: 21248984900 can be written as Twenty-one billion, two hundred forty-eight million, nine hundred eighty-four thousand, nine hundred.

Scientific notation

• Scientific notation: 2.12489849 × 10¹⁰

Factors of 21248984900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 15447

Divisors of 21248984900

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 10 11 13 20 22 25 26 44 50 52 55 65 97 100 110 130 143 194 220 260 275 286 325 388 485 550 572 650 715 970 1067 1100 1261 1300 1430 1940 2134 2425 2522 2860 3575 4268 4850 5044 5335 6305 7150 9700 10670 12610 13871 14300 15319 21340 25220 26675 27742 30638 31525 53350 55484 61276 63050 69355 76595 106700 126100 138710 153190 168509 199147 277420 306380 337018 346775 382975 398294 674036 693550 765950 796588 842545 995735 1387100 1485943 1531900 1685090 1991470 2190617 2971886 3370180 3982940 4212725 4381234 4978675 5943772 7429715 8425450 8762468 9957350 10953085 14859430 16345373 16850900 19317259 19914700 21906170 29718860 32690746 37148575 38634518 43812340 54765425 65381492 74297150 77269036 81726865 96586295 109530850 148594300 163453730 193172590 212489849 219061700 326907460 386345180 408634325 424979698 482931475 817268650 849959396 965862950 1062449245 1634537300 1931725900 2124898490 4249796980 5312246225 10624492450 21248984900
• Sum of all divisors σ(n): 54733580160
• Sum of proper divisors (its aliquot sum) s(n): 33484595260
• 21248984900 is an abundant number, because the sum of its proper divisors (33484595260) is greater than itself. Its abundance is 12235610360

Bases of 21248984900

• Binary: 10011110010100010011100011101000100₂
• Hexadecimal: 0x4F289C744
• Base-36: 9RF3HOK

Squares and roots of 21248984900

• 21248984900 squared (21248984900²) is 451519359280428010000
• 21248984900 cubed (21248984900³) is 9594328047407489650027049000000
• The square root of 21248984900 is 145770.3155652755
• The cube root of 21248984900 is 2769.7850233057

Scales and comparisons

• 21,248,984,900 seconds is equal to 675 years, 33 weeks, 6 days, 7 hours, 48 minutes, 20 seconds.
• To count from 1 to 21,248,984,900 would take you about one thousand, three hundred fifty-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 21248984900 cubic inches would be around 230.8 feet tall.

Recreational maths with 21248984900

• 21248984900 backwards is 00948984212
• The number of decimal digits it has is: 11
• The sum of 21248984900's digits is 47
• More coming soon!