1621144161

Names of 1621144161

• Cardinal: 1621144161 can be written as One billion, six hundred twenty-one million, one hundred forty-four thousand, one hundred sixty-one.

Scientific notation

• Scientific notation: 1.621144161 × 10⁹

Factors of 1621144161

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3607

Divisors of 1621144161

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 13 21 39 43 63 91 117 129 169 273 301 387 507 559 819 903 1183 1521 1677 2709 3541 3549 3913 5031 7267 10623 10647 11739 21801 24787 31869 35217 46033 50869 65403 74361 138099 152263 152607 223083 322231 414297 456789 457821 598429 966693 1065841 1370367 1795287 1979419 2900079 3197523 4189003 5385861 5938257 9592569 12567009 13855933 17814771 25732447 37701027 41567799 77197341 124703397 180127129 231592023 540381387 1621144161
• Sum of all divisors σ(n): 2966099136
• Sum of proper divisors (its aliquot sum) s(n): 1344954975
• 1621144161 is a deficient number, because the sum of its proper divisors (1344954975) is less than itself. Its deficiency is 276189186

Bases of 1621144161

• Binary: 1100000101000001011001001100001₂
• Hexadecimal: 0x60A0B261
• Base-36: QT6QU9

Squares and roots of 1621144161

• 1621144161 squared (1621144161²) is 2628108390744393921
• 1621144161 cubed (1621144161³) is 4260542572130380648513045281
• The square root of 1621144161 is 40263.4345405357
• The cube root of 1621144161 is 1174.7367235091

Scales and comparisons

• 1,621,144,161 seconds is equal to 51 years, 28 weeks, 3 days, 5 hours, 49 minutes, 21 seconds.
• To count from 1 to 1,621,144,161 would take you about one hundred 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 1621144161 cubic inches would be around 97.9 feet tall.

Recreational maths with 1621144161

• 1621144161 backwards is 1614411261
• The number of decimal digits it has is: 10
• The sum of 1621144161's digits is 27
• More coming soon!