12819551990

Names of 12819551990

• Cardinal: 12819551990 can be written as Twelve billion, eight hundred nineteen million, five hundred fifty-one thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.281955199 × 10¹⁰

Factors of 12819551990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 243

Divisors of 12819551990

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 5 7 10 14 35 49 61 70 79 89 98 122 158 178 245 305 395 427 445 490 553 610 623 790 854 890 1106 1246 2135 2765 2989 3115 3721 3871 4270 4361 4819 5429 5530 5978 6230 7031 7442 7742 8722 9638 10858 14062 14945 18605 19355 21805 24095 26047 27145 29890 33733 35155 37210 38003 38710 43610 48190 49217 52094 54290 67466 70310 76006 98434 130235 168665 182329 190015 236131 246085 260470 266021 293959 331169 337330 344519 364658 380030 428891 472262 492170 532042 587918 662338 689038 857782 911645 1180655 1330105 1469795 1655845 1722595 1823290 2057713 2144455 2318183 2361310 2660210 2939590 3002237 3311690 3445190 4115426 4288910 4636366 6004474 10288565 11590915 14403991 15011185 16227281 20577130 21015659 23181830 26162351 28807982 30022370 32454562 42031318 52324702 72019955 81136405 105078295 130811755 144039910 162272810 183136457 210156590 261623510 366272914 915682285 1281955199 1831364570 2563910398 6409775995 12819551990
• Sum of all divisors σ(n): 27945777600
• Sum of proper divisors (its aliquot sum) s(n): 15126225610
• 12819551990 is an abundant number, because the sum of its proper divisors (15126225610) is greater than itself. Its abundance is 2306673620

Bases of 12819551990

• Binary: 1011111100000110101101011011110110₂
• Hexadecimal: 0x2FC1AD6F6
• Base-36: 5W0FHME

Squares and roots of 12819551990

• 12819551990 squared (12819551990²) is 164340913224312960100
• 12819551990 cubed (12819551990³) is 2106776881163158524032745599000
• The square root of 12819551990 is 113223.4604222993
• The cube root of 12819551990 is 2340.4046339249

Scales and comparisons

• 12,819,551,990 seconds is equal to 407 years, 32 weeks, 2 days, 10 hours, 39 minutes, 50 seconds.
• To count from 1 to 12,819,551,990 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 12819551990 cubic inches would be around 195 feet tall.

Recreational maths with 12819551990

• 12819551990 backwards is 09915591821
• The number of decimal digits it has is: 11
• The sum of 12819551990's digits is 50
• More coming soon!