990010189120

Names of 990010189120

• Cardinal: 990010189120 can be written as Nine hundred ninety billion, ten million, one hundred eighty-nine thousand, one hundred twenty.

Scientific notation

• Scientific notation: 9.9001018912 × 10¹¹

Factors of 990010189120

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 801049

Divisors of 990010189120

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 160 320 3881 7762 15524 19405 31048 38810 62096 77620 124192 155240 248384 310480 620960 797161 1241920 1594322 3188644 3985805 6377288 7971610 12754576 15943220 25509152 31886440 51018304 63772880 127545760 255091520 3093781841 6187563682 12375127364 15468909205 24750254728 30937818410 49500509456 61875636820 99001018912 123751273640 198002037824 247502547280 495005094560 990010189120
• Sum of all divisors σ(n): 2358072157608
• Sum of proper divisors (its aliquot sum) s(n): 1368061968488
• 990010189120 is an abundant number, because the sum of its proper divisors (1368061968488) is greater than itself. Its abundance is 378051779368

Bases of 990010189120

• Binary: 1110011010000001001101001010010101000000₂
• Hexadecimal: 0xE68134A540
• Base-36: CMSYI6V4

Squares and roots of 990010189120

• 990010189120 squared (990010189120²) is 980120174561418166374400
• 990010189120 cubed (990010189120³) is 970328959377877011947723368726528000
• The square root of 990010189120 is 994992.5573188977
• The cube root of 990010189120 is 9966.5891260707

Scales and comparisons

• 990,010,189,120 seconds is equal to 31,479 years, 13 weeks, 4 days, 6 hours, 18 minutes, 40 seconds.
• To count from 1 to 990,010,189,120 would take you about sixty-two thousand, nine hundred fifty-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 990010189120 cubic inches would be around 830.5 feet tall.

Recreational maths with 990010189120

• 990010189120 backwards is 021981010099
• 990010189120 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 990010189120's digits is 40
• More coming soon!