21306765200

Names of 21306765200

• Cardinal: 21306765200 can be written as Twenty-one billion, three hundred six million, seven hundred sixty-five thousand, two hundred.

Scientific notation

• Scientific notation: 2.13067652 × 10¹⁰

Factors of 21306765200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 185654

Divisors of 21306765200

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 35 40 41 50 56 70 80 82 100 112 140 164 175 200 205 280 287 328 350 400 410 560 574 656 700 820 1025 1148 1400 1435 1640 2050 2296 2800 2870 3280 4100 4592 5740 7175 8200 11480 14350 16400 22960 28700 57400 114800 185599 371198 742396 927995 1299193 1484792 1855990 2598386 2969584 3711980 4639975 5196772 6495965 7423960 7609559 9279950 10393544 12991930 14847920 15219118 18559900 20787088 25983860 30438236 32479825 37119800 38047795 51967720 53266913 60876472 64959650 74239600 76095590 103935440 106533826 121752944 129919300 152191180 190238975 213067652 259838600 266334565 304382360 380477950 426135304 519677200 532669130 608764720 760955900 852270608 1065338260 1331672825 1521911800 2130676520 2663345650 3043823600 4261353040 5326691300 10653382600 21306765200
• Sum of all divisors σ(n): 59929497600
• Sum of proper divisors (its aliquot sum) s(n): 38622732400
• 21306765200 is an abundant number, because the sum of its proper divisors (38622732400) is greater than itself. Its abundance is 17315967200

Bases of 21306765200

• Binary: 10011110101111110110110111110010000₂
• Hexadecimal: 0x4F5FB6F90
• Base-36: 9SDHX8W

Squares and roots of 21306765200

• 21306765200 squared (21306765200²) is 453978243287931040000
• 21306765200 cubed (21306765200³) is 9672807835644422663071808000000
• The square root of 21306765200 is 145968.3705464989
• The cube root of 21306765200 is 2772.2932869483

Scales and comparisons

• 21,306,765,200 seconds is equal to 677 years, 25 weeks, 3 days, 1 hour, 53 minutes, 20 seconds.
• To count from 1 to 21,306,765,200 would take you about one thousand, three hundred fifty-four 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 21306765200 cubic inches would be around 231 feet tall.

Recreational maths with 21306765200

• 21306765200 backwards is 00256760312
• The number of decimal digits it has is: 11
• The sum of 21306765200's digits is 32
• More coming soon!