1002121920

Names of 1002121920

• Cardinal: 1002121920 can be written as One billion, two million, one hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.00212192 × 10⁹

Factors of 1002121920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 347969

Divisors of 1002121920

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 347959 695918 1043877 1391836 1739795 2087754 2783672 3131631 3479590 4175508 5219385 5567344 6263262 6959180 8351016 10438770 11134688 12526524 13918360 15658155 16702032 20877540 22269376 25053048 27836720 31316310 33404064 41755080 50106096 55673440 62632620 66808128 83510160 100212192 111346880 125265240 167020320 200424384 250530480 334040640 501060960 1002121920
• Sum of all divisors σ(n): 3446891760
• Sum of proper divisors (its aliquot sum) s(n): 2444769840
• 1002121920 is an abundant number, because the sum of its proper divisors (2444769840) is greater than itself. Its abundance is 1442647920

Bases of 1002121920

• Binary: 111011101110110010101011000000₂
• Hexadecimal: 0x3BBB2AC0
• Base-36: GKMY80

Squares and roots of 1002121920

• 1002121920 squared (1002121920²) is 1004248342544486400
• 1002121920 cubed (1002121920³) is 1006379277187498396581888000
• The square root of 1002121920 is 31656.3093237349
• The cube root of 1002121920 is 1000.7068069731

Scales and comparisons

• 1,002,121,920 seconds is equal to 31 years, 44 weeks, 6 days, 15 hours, 12 minutes.
• To count from 1 to 1,002,121,920 would take you about sixty-three 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 1002121920 cubic inches would be around 83.4 feet tall.

Recreational maths with 1002121920

• 1002121920 backwards is 0291212001
• 1002121920 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1002121920's digits is 18
• More coming soon!