19942683138

Names of 19942683138

• Cardinal: 19942683138 can be written as Nineteen billion, nine hundred forty-two million, six hundred eighty-three thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.9942683138 × 10¹⁰

Factors of 19942683138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8751

Divisors of 19942683138

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 19 21 27 38 42 54 57 63 114 126 133 171 189 266 331 342 378 399 513 662 798 993 1026 1197 1986 2317 2394 2979 3591 4634 5958 6289 6951 7182 8389 8937 12578 13902 16778 17874 18867 20853 25167 37734 41706 44023 50334 56601 58723 62559 75501 88046 113202 117446 125118 132069 151002 159391 169803 176169 226503 264138 318782 339606 352338 396207 453006 478173 528507 792414 956346 1057014 1115737 1188621 1434519 1585521 2231474 2377242 2776759 2869038 3171042 3347211 4303557 5553518 6694422 8330277 8607114 10041633 16660554 19437313 20083266 24990831 30124899 38874626 49981662 52758421 58311939 60249798 74972493 105516842 116623878 149944986 158275263 174935817 316550526 349871634 369308947 474825789 524807451 738617894 949651578 1049614902 1107926841 1424477367 2215853682 2848954734 3323780523 6647561046 9971341569 19942683138
• Sum of all divisors σ(n): 53481216000
• Sum of proper divisors (its aliquot sum) s(n): 33538532862
• 19942683138 is an abundant number, because the sum of its proper divisors (33538532862) is greater than itself. Its abundance is 13595849724

Bases of 19942683138

• Binary: 10010100100101011010011001000000010₂
• Hexadecimal: 0x4A4AD3202
• Base-36: 95TCWSI

Squares and roots of 19942683138

• 19942683138 squared (19942683138²) is 397710610742669527044
• 19942683138 cubed (19942683138³) is 7931416690661517234086813784072
• The square root of 19942683138 is 141218.5651322091
• The cube root of 19942683138 is 2711.8221039039

Scales and comparisons

• 19,942,683,138 seconds is equal to 634 years, 6 weeks, 2 hours, 12 minutes, 18 seconds.
• To count from 1 to 19,942,683,138 would take you about one thousand, two hundred sixty-eight 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 19942683138 cubic inches would be around 226 feet tall.

Recreational maths with 19942683138

• 19942683138 backwards is 83138624991
• 19942683138 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19942683138's digits is 54
• More coming soon!