1661531742

Names of 1661531742

• Cardinal: 1661531742 can be written as One billion, six hundred sixty-one million, five hundred thirty-one thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 1.661531742 × 10⁹

Factors of 1661531742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8490

Divisors of 1661531742

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 13 18 26 29 39 58 78 87 117 174 234 261 377 522 754 841 1131 1682 2262 2523 3393 5046 6786 7569 8443 10933 15138 16886 21866 25329 32799 50658 65598 75987 98397 109759 151974 196794 219518 244847 329277 489694 658554 734541 987831 1469082 1975662 2203623 3183011 4407246 6366022 7100563 9549033 14201126 19098066 21301689 28647099 42603378 57294198 63905067 92307319 127810134 184614638 276921957 553843914 830765871 1661531742
• Sum of all divisors σ(n): 4015679304
• Sum of proper divisors (its aliquot sum) s(n): 2354147562
• 1661531742 is an abundant number, because the sum of its proper divisors (2354147562) is greater than itself. Its abundance is 692615820

Bases of 1661531742

• Binary: 1100011000010001111011001011110₂
• Hexadecimal: 0x6308F65E
• Base-36: RH8E3I

Squares and roots of 1661531742

• 1661531742 squared (1661531742²) is 2760687729673554564
• 1661531742 cubed (1661531742³) is 4586970292602526206054970488
• The square root of 1661531742 is 40761.8908050155
• The cube root of 1661531742 is 1184.4122235913

Scales and comparisons

• 1,661,531,742 seconds is equal to 52 years, 43 weeks, 1 day, 16 hours, 35 minutes, 42 seconds.
• To count from 1 to 1,661,531,742 would take you about one hundred five 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 1661531742 cubic inches would be around 98.7 feet tall.

Recreational maths with 1661531742

• 1661531742 backwards is 2471351661
• The number of decimal digits it has is: 10
• The sum of 1661531742's digits is 36
• More coming soon!