21081303102

Names of 21081303102

• Cardinal: 21081303102 can be written as Twenty-one billion, eighty-one million, three hundred three thousand, one hundred two.

Scientific notation

• Scientific notation: 2.1081303102 × 10¹⁰

Factors of 21081303102

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 8809

Divisors of 21081303102

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 71 73 79 142 146 158 213 219 237 426 438 474 5183 5609 5767 8581 10366 11218 11534 15549 16827 17162 17301 25743 31098 33654 34602 51486 409457 609251 626413 677899 818914 1218502 1228371 1252826 1355798 1827753 1879239 2033697 2456742 3655506 3758478 4067394 44475323 48130829 49486627 88950646 96261658 98973254 133425969 144392487 148459881 266851938 288784974 296919762 3513550517 7027101034 10540651551 21081303102
• Sum of all divisors σ(n): 43895900160
• Sum of proper divisors (its aliquot sum) s(n): 22814597058
• 21081303102 is an abundant number, because the sum of its proper divisors (22814597058) is greater than itself. Its abundance is 1733293956

Bases of 21081303102

• Binary: 10011101000100010110010100000111110₂
• Hexadecimal: 0x4E88B283E
• Base-36: 9ON9HKU

Squares and roots of 21081303102

• 21081303102 squared (21081303102²) is 444421340478394822404
• 21081303102 cubed (21081303102³) is 9368980983622182933526184297208
• The square root of 21081303102 is 145194.0188230907
• The cube root of 21081303102 is 2762.4800531773

Scales and comparisons

• 21,081,303,102 seconds is equal to 670 years, 16 weeks, 4 days, 13 hours, 31 minutes, 42 seconds.
• To count from 1 to 21,081,303,102 would take you about one thousand, three hundred forty 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 21081303102 cubic inches would be around 230.2 feet tall.

Recreational maths with 21081303102

• 21081303102 backwards is 20130318012
• The number of decimal digits it has is: 11
• The sum of 21081303102's digits is 21
• More coming soon!