16418546991

Names of 16418546991

• Cardinal: 16418546991 can be written as Sixteen billion, four hundred eighteen million, five hundred forty-six thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 1.6418546991 × 10¹⁰

Factors of 16418546991

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 593

Divisors of 16418546991

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 11 21 27 33 63 77 81 99 121 189 231 241 243 297 331 363 567 693 723 847 891 993 1089 1687 1701 2079 2169 2317 2541 2651 2673 2979 3267 3641 5061 6237 6507 6951 7623 7953 8937 9801 10923 15183 18557 18711 19521 20853 22869 23859 25487 26811 29161 29403 32769 40051 45549 55671 58563 62559 68607 71577 76461 79771 80433 87483 98307 120153 136647 167013 187677 204127 205821 214731 229383 239313 262449 280357 294921 360459 409941 501039 558397 563031 612381 644193 688149 717939 787347 841071 877481 884763 1081377 1503117 1675191 1837143 2064447 2153817 2362041 2523213 2632443 3244131 4509351 5025573 5511429 6142367 6193341 6461451 7086123 7569639 7897329 9652291 9732393 15076719 16534287 18427101 19384353 22708917 23691987 28956873 45230157 49602861 55281303 67566037 68126751 71075961 86870619 135690471 165843909 202698111 213227883 260611857 497531727 608094333 781835571 1492595181 1824282999 2345506713 5472848997 16418546991
• Sum of all divisors σ(n): 31116909824
• Sum of proper divisors (its aliquot sum) s(n): 14698362833
• 16418546991 is a deficient number, because the sum of its proper divisors (14698362833) is less than itself. Its deficiency is 1720184158

Bases of 16418546991

• Binary: 1111010010100111110010010100101111₂
• Hexadecimal: 0x3D29F252F
• Base-36: 7JJ6FXR

Squares and roots of 16418546991

• 16418546991 squared (16418546991²) is 269568685295675154081
• 16418546991 cubed (16418546991³) is 4425926126829133246350063920271
• The square root of 16418546991 is 128134.8781206741
• The cube root of 16418546991 is 2541.6255838697

Scales and comparisons

• 16,418,546,991 seconds is equal to 522 years, 3 weeks, 11 hours, 29 minutes, 51 seconds.
• To count from 1 to 16,418,546,991 would take you about one thousand and forty-four 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 16418546991 cubic inches would be around 211.8 feet tall.

Recreational maths with 16418546991

• 16418546991 backwards is 19964581461
• The number of decimal digits it has is: 11
• The sum of 16418546991's digits is 54
• More coming soon!