168788683921

Names of 168788683921

• Cardinal: 168788683921 can be written as One hundred sixty-eight billion, seven hundred eighty-eight million, six hundred eighty-three thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.68788683921 × 10¹¹

Factors of 168788683921

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 41

Divisors of 168788683921

• Number of divisors d(n): 63
• Complete list of divisors:
  1 11 13 17 121 143 169 187 221 289 1573 1859 2057 2197 2431 2873 3179 3757 20449 24167 26741 28561 31603 34969 37349 41327 48841 265837 314171 347633 371293 410839 454597 485537 537251 634933 3455881 4084223 4519229 4826809 5340907 5909761 6311981 6984263 8254129 44926453 53094899 58749977 69431791 76826893 82055753 90795419 107303677 584043889 763749701 902613283 998749609 1180340447 1394947801 9928746113 12983744917 15344425811 168788683921
• Sum of all divisors σ(n): 213507054733
• Sum of proper divisors (its aliquot sum) s(n): 44718370812
• 168788683921 is a deficient number, because the sum of its proper divisors (44718370812) is less than itself. Its deficiency is 124070313109

Bases of 168788683921

• Binary: 10011101001100100101101110110010010001₂
• Hexadecimal: 0x274C96EC91
• Base-36: 25JGFA1D

Squares and roots of 168788683921

• 168788683921 squared (168788683921²) is 28489619819783243934241
• 168788683921 cubed (168788683921³) is 4808725434790850943148644658038961
• 168788683921 is a perfect square number. Its square root is 410839
• The cube root of 168788683921 is 5526.4694757977

Scales and comparisons

• 168,788,683,921 seconds is equal to 5,366 years, 49 weeks, 5 days, 17 hours, 32 minutes, 1 second.
• To count from 1 to 168,788,683,921 would take you about ten thousand, seven hundred thirty-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 168788683921 cubic inches would be around 460.5 feet tall.

Recreational maths with 168788683921

• 168788683921 backwards is 129386887861
• The number of decimal digits it has is: 12
• The sum of 168788683921's digits is 67
• More coming soon!