12123537842

Names of 12123537842

• Cardinal: 12123537842 can be written as Twelve billion, one hundred twenty-three million, five hundred thirty-seven thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 1.2123537842 × 10¹⁰

Factors of 12123537842

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 835

Divisors of 12123537842

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 13 26 61 67 122 134 271 421 542 793 842 871 1586 1742 3523 4087 5473 7046 8174 10946 16531 18157 25681 28207 33062 36314 51362 53131 56414 106262 114091 214903 228182 236041 333853 366691 429806 472082 667706 733382 1107577 1483183 1720627 2215154 2966366 3441254 6959551 7644097 13919102 14398501 15288194 22368151 28797002 44736302 90474163 99373261 180948326 198746522 466289917 932579834 6061768921 12123537842
• Sum of all divisors σ(n): 20325032448
• Sum of proper divisors (its aliquot sum) s(n): 8201494606
• 12123537842 is a deficient number, because the sum of its proper divisors (8201494606) is less than itself. Its deficiency is 3922043236

Bases of 12123537842

• Binary: 1011010010100111101000000110110010₂
• Hexadecimal: 0x2D29E81B2
• Base-36: 5KI1HO2

Squares and roots of 12123537842

• 12123537842 squared (12123537842²) is 146980169806406016964
• 12123537842 cubed (12123537842³) is 1781919650671549160679547951688
• The square root of 12123537842 is 110106.9382100873
• The cube root of 12123537842 is 2297.2580962925

Scales and comparisons

• 12,123,537,842 seconds is equal to 385 years, 25 weeks, 3 days, 17 hours, 24 minutes, 2 seconds.
• To count from 1 to 12,123,537,842 would take you about seven hundred seventy 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 12123537842 cubic inches would be around 191.4 feet tall.

Recreational maths with 12123537842

• 12123537842 backwards is 24873532121
• The number of decimal digits it has is: 11
• The sum of 12123537842's digits is 38
• More coming soon!