12817426890

Names of 12817426890

• Cardinal: 12817426890 can be written as Twelve billion, eight hundred seventeen million, four hundred twenty-six thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.281742689 × 10¹⁰

Factors of 12817426890

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3028

Divisors of 12817426890

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 10 15 23 30 46 69 79 83 115 138 158 166 230 237 249 345 395 415 474 498 690 790 830 1185 1245 1817 1909 2370 2490 2833 3634 3818 5451 5666 5727 6557 8499 9085 9545 10902 11454 13114 14165 16998 18170 19090 19671 27255 28330 28635 32785 39342 42495 54510 57270 65159 65570 84990 98355 130318 150811 195477 196710 223807 235139 301622 325795 390954 447614 452433 470278 651590 671421 705417 754055 904866 977385 1119035 1175695 1342842 1410834 1508110 1954770 2238070 2262165 2351390 3357105 3527085 4524330 5147561 5408197 6714210 7054170 10295122 10816394 15442683 16224591 18575981 25737805 27040985 30885366 32449182 37151962 51475610 54081970 55727943 77213415 81122955 92879905 111455886 154426830 162245910 185759810 278639715 427247563 557279430 854495126 1281742689 2136237815 2563485378 4272475630 6408713445 12817426890
• Sum of all divisors σ(n): 32908861440
• Sum of proper divisors (its aliquot sum) s(n): 20091434550
• 12817426890 is an abundant number, because the sum of its proper divisors (20091434550) is greater than itself. Its abundance is 7274007660

Bases of 12817426890

• Binary: 1011111011111110100110100111001010₂
• Hexadecimal: 0x2FBFA69CA
• Base-36: 5VZ5XVU

Squares and roots of 12817426890

• 12817426890 squared (12817426890²) is 164286432080495072100
• 12817426890 cubed (12817426890³) is 2105729332210696181647028769000
• The square root of 12817426890 is 113214.0754941717
• The cube root of 12817426890 is 2340.2753036453

Scales and comparisons

• 12,817,426,890 seconds is equal to 407 years, 28 weeks, 5 days, 20 hours, 21 minutes, 30 seconds.
• To count from 1 to 12,817,426,890 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 12817426890 cubic inches would be around 195 feet tall.

Recreational maths with 12817426890

• 12817426890 backwards is 09862471821
• The number of decimal digits it has is: 11
• The sum of 12817426890's digits is 48
• More coming soon!