21090403446

Names of 21090403446

• Cardinal: 21090403446 can be written as Twenty-one billion, ninety million, four hundred three thousand, four hundred forty-six.

Scientific notation

• Scientific notation: 2.1090403446 × 10¹⁰

Factors of 21090403446

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1330

Divisors of 21090403446

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 57 114 133 151 181 266 302 362 399 453 543 798 906 967 1057 1086 1267 1934 2114 2534 2869 2901 3171 3439 3801 5738 5802 6342 6769 6878 7602 8607 10317 13538 17214 18373 20083 20307 20634 24073 27331 36746 40166 40614 48146 54662 55119 60249 72219 81993 110238 120498 128611 144438 146017 163986 175027 191317 257222 292034 350054 382634 385833 438051 519289 525081 573951 771666 876102 1022119 1038578 1050162 1147902 1225189 1557867 2044238 2450378 2774323 3066357 3115734 3325513 3635023 3675567 5548646 6132714 6651026 7270046 7351134 8322969 9976539 10905069 16645938 19420261 19953078 21810138 23278591 26429077 38840522 46557182 52858154 58260783 69835773 79287231 116521566 139671546 158574462 185003539 370007078 502152463 555010617 1004304926 1110021234 1506457389 3012914778 3515067241 7030134482 10545201723 21090403446
• Sum of all divisors σ(n): 51415203840
• Sum of proper divisors (its aliquot sum) s(n): 30324800394
• 21090403446 is an abundant number, because the sum of its proper divisors (30324800394) is greater than itself. Its abundance is 9234396948

Bases of 21090403446

• Binary: 10011101001000101100000010001110110₂
• Hexadecimal: 0x4E9160476
• Base-36: 9OSOJG6

Squares and roots of 21090403446

• 21090403446 squared (21090403446²) is 444805117515048674916
• 21090403446 cubed (21090403446³) is 9381119383237817530306140160536
• The square root of 21090403446 is 145225.3540054215
• The cube root of 21090403446 is 2762.8774970185

Scales and comparisons

• 21,090,403,446 seconds is equal to 670 years, 31 weeks, 4 days, 21 hours, 24 minutes, 6 seconds.
• To count from 1 to 21,090,403,446 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 21090403446 cubic inches would be around 230.2 feet tall.

Recreational maths with 21090403446

• 21090403446 backwards is 64430409012
• The number of decimal digits it has is: 11
• The sum of 21090403446's digits is 33
• More coming soon!