1561520142

Names of 1561520142

• Cardinal: 1561520142 can be written as One billion, five hundred sixty-one million, five hundred twenty thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 1.561520142 × 10⁹

Factors of 1561520142

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8053

Divisors of 1561520142

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 7 9 13 14 17 18 21 26 34 39 42 49 51 63 78 91 98 102 117 119 126 147 153 182 221 234 238 273 294 306 357 441 442 546 637 663 714 819 833 882 1071 1274 1326 1547 1638 1666 1911 1989 2142 2499 3094 3822 3978 4641 4998 5733 7497 8011 9282 10829 11466 13923 14994 16022 21658 24033 27846 32487 48066 56077 64974 72099 97461 104143 112154 136187 144198 168231 194922 208286 272374 312429 336462 392539 408561 504693 624858 729001 785078 817122 937287 953309 1009386 1177617 1225683 1458002 1770431 1874574 1906618 2187003 2355234 2451366 2859927 3532851 3540862 4374006 5103007 5311293 5719854 6561009 6673163 7065702 8579781 10206014 10622586 12393017 13122018 13346326 15309021 15933879 17159562 20019489 24786034 30618042 31867758 37179051 40038978 45927063 60058467 74358102 86751119 91854126 111537153 120116934 173502238 223074306 260253357 520506714 780760071 1561520142
• Sum of all divisors σ(n): 4488290352
• Sum of proper divisors (its aliquot sum) s(n): 2926770210
• 1561520142 is an abundant number, because the sum of its proper divisors (2926770210) is greater than itself. Its abundance is 1365250068

Bases of 1561520142

• Binary: 1011101000100101110100000001110₂
• Hexadecimal: 0x5D12E80E
• Base-36: PTOSNI

Squares and roots of 1561520142

• 1561520142 squared (1561520142²) is 2438345153871700164
• 1561520142 cubed (1561520142³) is 3807525070918749089870703288
• The square root of 1561520142 is 39516.0744760915
• The cube root of 1561520142 is 1160.1545924563

Scales and comparisons

• 1,561,520,142 seconds is equal to 49 years, 33 weeks, 6 days, 3 hours, 35 minutes, 42 seconds.
• To count from 1 to 1,561,520,142 would take you about ninety-nine 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 1561520142 cubic inches would be around 96.7 feet tall.

Recreational maths with 1561520142

• 1561520142 backwards is 2410251651
• The number of decimal digits it has is: 10
• The sum of 1561520142's digits is 27
• More coming soon!