61640908020

Names of 61640908020

• Cardinal: 61640908020 can be written as Sixty-one billion, six hundred forty million, nine hundred eight thousand and twenty.

Scientific notation

• Scientific notation: 6.164090802 × 10¹⁰

Factors of 61640908020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3390700

Divisors of 61640908020

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 101 180 202 303 404 505 606 909 1010 1212 1515 1818 2020 3030 3636 4545 6060 9090 18180 3390589 6781178 10171767 13562356 16952945 20343534 30515301 33905890 40687068 50858835 61030602 67811780 101717670 122061204 152576505 203435340 305153010 342449489 610306020 684898978 1027348467 1369797956 1712247445 2054696934 3082045401 3424494890 4109393868 5136742335 6164090802 6848989780 10273484670 12328181604 15410227005 20546969340 30820454010 61640908020
• Sum of all divisors σ(n): 188828738280
• Sum of proper divisors (its aliquot sum) s(n): 127187830260
• 61640908020 is an abundant number, because the sum of its proper divisors (127187830260) is greater than itself. Its abundance is 65546922240

Bases of 61640908020

• Binary: 111001011010000101011001110011110100₂
• Hexadecimal: 0xE5A159CF4
• Base-36: SBFEL10

Squares and roots of 61640908020

• 61640908020 squared (61640908020²) is 3799601541530100320400
• 61640908020 cubed (61640908020³) is 234210889134107123911148929608000
• The square root of 61640908020 is 248275.8707969827
• The cube root of 61640908020 is 3950.2356964521

Scales and comparisons

• 61,640,908,020 seconds is equal to 1,959 years, 51 weeks, 3 days, 10 hours, 27 minutes.
• To count from 1 to 61,640,908,020 would take you about three thousand, nine hundred nineteen 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 61640908020 cubic inches would be around 329.2 feet tall.

Recreational maths with 61640908020

• 61640908020 backwards is 02080904616
• 61640908020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 61640908020's digits is 36
• More coming soon!