161440402920

Names of 161440402920

• Cardinal: 161440402920 can be written as One hundred sixty-one billion, four hundred forty million, four hundred two thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.6144040292 × 10¹¹

Factors of 161440402920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 405310

Divisors of 161440402920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 3347 6694 10041 13388 16735 20082 26776 33470 40164 50205 66940 80328 100410 133880 200820 401640 401953 803906 1205859 1607812 2009765 2411718 3215624 4019530 4823436 6029295 8039060 9646872 12058590 16078120 24117180 48234360 1345336691 2690673382 4036010073 5381346764 6726683455 8072020146 10762693528 13453366910 16144040292 20180050365 26906733820 32288080584 40360100730 53813467640 80720201460 161440402920
• Sum of all divisors σ(n): 484467117120
• Sum of proper divisors (its aliquot sum) s(n): 323026714200
• 161440402920 is an abundant number, because the sum of its proper divisors (323026714200) is greater than itself. Its abundance is 161586311280

Bases of 161440402920

• Binary: 10010110010110100110010000110111101000₂
• Hexadecimal: 0x2596990DE8
• Base-36: 225XG44O

Squares and roots of 161440402920

• 161440402920 squared (161440402920²) is 26063003694971944526400
• 161440402920 cubed (161440402920³) is 4207621817821719502437904577088000
• The square root of 161440402920 is 401796.4695215725
• The cube root of 161440402920 is 5445.0776521259

Scales and comparisons

• 161,440,402,920 seconds is equal to 5,133 years, 15 weeks, 6 days, 4 hours, 22 minutes.
• To count from 1 to 161,440,402,920 would take you about ten thousand, two hundred sixty-six 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 161440402920 cubic inches would be around 453.8 feet tall.

Recreational maths with 161440402920

• 161440402920 backwards is 029204044161
• The number of decimal digits it has is: 12
• The sum of 161440402920's digits is 33
• More coming soon!