168381377649

Names of 168381377649

• Cardinal: 168381377649 can be written as One hundred sixty-eight billion, three hundred eighty-one million, three hundred seventy-seven thousand, six hundred forty-nine.

Scientific notation

• Scientific notation: 1.68381377649 × 10¹¹

Factors of 168381377649

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 358

Divisors of 168381377649

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 9 19 23 57 69 171 207 313 361 437 529 939 1083 1311 1587 2817 3249 3933 4761 5947 7199 8303 10051 17841 21597 24909 30153 53523 64791 74727 90459 97969 112993 136781 165577 190969 293907 338979 410343 496731 572907 881721 1016937 1231029 1490193 1718721 1861411 2253287 2598839 3145963 5584233 6759861 7796517 9437889 16752699 20279583 23389551 28313667 35366809 42812453 51825601 59773297 106100427 128437359 155476803 179319891 318301281 385312077 466430409 537959673 813436607 984686419 2440309821 2954059257 7320929463 8862177771 18709041961 56127125883 168381377649
• Sum of all divisors σ(n): 269198021547
• Sum of proper divisors (its aliquot sum) s(n): 100816643898
• 168381377649 is a deficient number, because the sum of its proper divisors (100816643898) is less than itself. Its deficiency is 67564733751

Bases of 168381377649

• Binary: 10011100110100010011111110110001110001₂
• Hexadecimal: 0x27344FEC71
• Base-36: 25CPXAI9

Squares and roots of 168381377649

• 168381377649 squared (168381377649²) is 28352288338975156767201
• 168381377649 cubed (168381377649³) is 4773997370018314797247049557690449
• 168381377649 is a perfect square number. Its square root is 410343
• The cube root of 168381377649 is 5522.0205623787

Scales and comparisons

• 168,381,377,649 seconds is equal to 5,354 years, 2 days, 12 hours, 54 minutes, 9 seconds.
• To count from 1 to 168,381,377,649 would take you about ten thousand, seven hundred eight 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 168381377649 cubic inches would be around 460.2 feet tall.

Recreational maths with 168381377649

• 168381377649 backwards is 946773183861
• The number of decimal digits it has is: 12
• The sum of 168381377649's digits is 63
• More coming soon!