12820491870

Names of 12820491870

• Cardinal: 12820491870 can be written as Twelve billion, eight hundred twenty million, four hundred ninety-one thousand, eight hundred seventy.

Scientific notation

• Scientific notation: 1.282049187 × 10¹⁰

Factors of 12820491870

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2450

Divisors of 12820491870

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 10 15 19 23 30 38 46 57 69 95 114 115 138 190 230 285 345 437 521 570 690 874 1042 1311 1563 1877 2185 2605 2622 3126 3754 4370 5210 5631 6555 7815 9385 9899 11262 11983 13110 15630 18770 19798 23966 28155 29697 35663 35949 43171 49495 56310 59394 59915 71326 71898 86342 98990 106989 119830 129513 148485 178315 179745 213978 215855 227677 259026 296970 356630 359490 431710 455354 534945 647565 683031 820249 977917 1069890 1138385 1295130 1366062 1640498 1955834 2276770 2460747 2933751 3415155 4101245 4889585 4921494 5867502 6830310 8202490 9779170 12303735 14668755 18580423 22492091 24607470 29337510 37160846 44984182 55741269 67476273 92902115 111482538 112460455 134952546 185804230 224920910 278706345 337381365 427349729 557412690 674762730 854699458 1282049187 2136748645 2564098374 4273497290 6410245935 12820491870
• Sum of all divisors σ(n): 33879720960
• Sum of proper divisors (its aliquot sum) s(n): 21059229090
• 12820491870 is an abundant number, because the sum of its proper divisors (21059229090) is greater than itself. Its abundance is 8238737220

Bases of 12820491870

• Binary: 1011111100001010010010111001011110₂
• Hexadecimal: 0x2FC292E5E
• Base-36: 5W0ZMU6

Squares and roots of 12820491870

• 12820491870 squared (12820491870²) is 164365011788736096900
• 12820491870 cubed (12820491870³) is 2107240297349945287881982203000
• The square root of 12820491870 is 113227.6108994621
• The cube root of 12820491870 is 2340.4618290009

Scales and comparisons

• 12,820,491,870 seconds is equal to 407 years, 33 weeks, 6 days, 7 hours, 44 minutes, 30 seconds.
• To count from 1 to 12,820,491,870 would take you about eight hundred fifteen 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 12820491870 cubic inches would be around 195 feet tall.

Recreational maths with 12820491870

• 12820491870 backwards is 07819402821
• The number of decimal digits it has is: 11
• The sum of 12820491870's digits is 42
• More coming soon!