491009135661

Names of 491009135661

• Cardinal: 491009135661 can be written as Four hundred ninety-one billion, nine million, one hundred thirty-five thousand, six hundred sixty-one.

Scientific notation

• Scientific notation: 4.91009135661 × 10¹¹

Factors of 491009135661

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 134

Divisors of 491009135661

• Number of divisors d(n): 224
• Complete list of divisors:
  1 3 9 11 17 27 33 51 81 99 103 121 153 187 243 289 297 309 363 459 561 729 867 891 927 1089 1133 1331 1377 1683 1751 2057 2601 2673 2781 3179 3267 3399 3993 4131 4913 5049 5253 6171 7803 8019 8343 9537 9801 10197 11979 12393 12463 14739 15147 15759 18513 19261 22627 23409 25029 28611 29403 29767 30591 34969 35937 37389 44217 45441 47277 54043 55539 57783 67881 70227 75087 85833 88209 89301 91773 104907 107811 112167 132651 136323 137093 141831 162129 166617 173349 203643 210681 211871 257499 267903 275319 314721 323433 327437 336501 384659 397953 411279 425493 486387 499851 506039 520047 594473 610929 635613 772497 803709 825957 944163 970299 982311 1009503 1153977 1193859 1233837 1276479 1459161 1499553 1518117 1560141 1783419 1832787 1906839 2317491 2330581 2411127 2832489 2946933 3028509 3461931 3581577 3601807 3701511 4377483 4554351 4680423 5350257 5498361 5566429 5720517 6539203 6991743 7233381 8497467 8840799 9085527 10385793 10805421 11104533 13132449 13663053 14041269 16050771 16495083 16699287 17161551 19617609 20975229 21700143 25492401 26522397 31157379 32416263 33313599 39397347 39619877 40989159 48152313 50097861 51484653 58852827 61230719 62925687 79567191 93472137 97248789 99940797 118859631 122967477 144456939 150293583 154453959 176558481 183692157 188777061 238701573 280416411 291746367 356578893 368902431 433370817 450880749 529675443 551076471 566331183 673537909 875239101 1069736679 1352642247 1589026329 1653229413 1698993549 2020613727 2625717303 3209210037 4057926741 4767078987 4959688239 6061841181 9627630111 14879064717 18185523543 28882890333 44637194151 54556570629 163669711887 491009135661
• Sum of all divisors σ(n): 868690517760
• Sum of proper divisors (its aliquot sum) s(n): 377681382099
• 491009135661 is a deficient number, because the sum of its proper divisors (377681382099) is less than itself. Its deficiency is 113327753562

Bases of 491009135661

• Binary: 111001001010010011011001101010000101101₂
• Hexadecimal: 0x72526CD42D
• Base-36: 69KE5TT9

Squares and roots of 491009135661

• 491009135661 squared (491009135661²) is 241089971302562301906921
• 491009135661 cubed (491009135661³) is 118377378425806410173919812283809781
• The square root of 491009135661 is 700720.4404475439
• The cube root of 491009135661 is 7889.1435325011

Scales and comparisons

• 491,009,135,661 seconds is equal to 15,612 years, 29 weeks, 5 days, 2 hours, 34 minutes, 21 seconds.
• To count from 1 to 491,009,135,661 would take you about thirty-one thousand, two hundred twenty-five 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 491009135661 cubic inches would be around 657.4 feet tall.

Recreational maths with 491009135661

• 491009135661 backwards is 166531900194
• The number of decimal digits it has is: 12
• The sum of 491009135661's digits is 45
• More coming soon!