18897317901

Names of 18897317901

• Cardinal: 18897317901 can be written as Eighteen billion, eight hundred ninety-seven million, three hundred seventeen thousand, nine hundred one.

Scientific notation

• Scientific notation: 1.8897317901 × 10¹⁰

Factors of 18897317901

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 149

Divisors of 18897317901

• Number of divisors d(n): 270
• Complete list of divisors:
  1 3 7 9 11 19 21 27 33 49 57 63 77 81 99 109 121 133 147 171 189 209 231 297 327 361 363 399 441 513 539 567 627 693 763 847 891 931 981 1083 1089 1197 1199 1323 1463 1539 1617 1881 2071 2079 2289 2299 2527 2541 2793 2943 3249 3267 3591 3597 3969 3971 4389 4851 5341 5643 5929 6213 6237 6867 6897 7581 7623 8379 8393 8829 9747 9801 10241 10773 10791 11913 13167 13189 14497 14553 16023 16093 16929 17689 17787 18639 20601 20691 22743 22781 22869 25137 25179 27797 29241 30723 32373 35739 39349 39501 39567 43491 43659 43681 48069 48279 53067 53361 55917 58751 61803 62073 68229 68343 68607 75411 75537 83391 92169 92323 97119 101479 107217 112651 118047 118503 118701 130473 131043 144207 144837 159201 159467 160083 167751 176253 186219 194579 204687 205029 226611 250173 250591 275443 276507 276969 304437 305767 321651 337953 354141 356103 391419 393129 432621 432839 434511 477603 478401 480249 528759 583737 615087 646261 679833 750519 751773 826329 829521 830907 913311 917301 1013859 1062423 1068309 1116269 1174257 1179387 1298517 1303533 1432809 1435203 1586277 1751211 1754137 1845261 1928101 1938783 2140369 2251557 2255319 2478987 2492721 2739933 2751903 3029873 3041577 3187269 3348807 3538161 3895551 4305609 4758831 4761229 5253633 5262411 5784303 5816349 6421107 6765957 7436961 7478163 8219799 8255709 9089619 9124731 10046421 11686653 12278959 12916827 14283687 15760899 15787233 17352909 17449047 19263321 20297871 21209111 22310883 24767127 27268857 30139263 33328603 35059959 36836877 42851061 47361699 52058727 52347141 57789963 63627333 81806571 90417789 99985809 110510631 128553183 142085097 156176181 173369889 190881999 233300221 245419713 299957427 331531893 385659549 572645997 699900663 899872281 994595679 1717937991 2099701989 2699616843 6299105967 18897317901
• Sum of all divisors σ(n): 38444084910
• Sum of proper divisors (its aliquot sum) s(n): 19546767009
• 18897317901 is an abundant number, because the sum of its proper divisors (19546767009) is greater than itself. Its abundance is 649449108

Bases of 18897317901

• Binary: 10001100110010111100011000000001101₂
• Hexadecimal: 0x4665E300D
• Base-36: 8OIZ3T9

Squares and roots of 18897317901

• 18897317901 squared (18897317901²) is 357108623851455045801
• 18897317901 cubed (18897317901³) is 6748395190109577001912012183701
• The square root of 18897317901 is 137467.5158028253
• The cube root of 18897317901 is 2663.5859968101

Scales and comparisons

• 18,897,317,901 seconds is equal to 600 years, 45 weeks, 3 days, 22 hours, 58 minutes, 21 seconds.
• To count from 1 to 18,897,317,901 would take you about one thousand, two hundred one 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 18897317901 cubic inches would be around 222 feet tall.

Recreational maths with 18897317901

• 18897317901 backwards is 10971379881
• The number of decimal digits it has is: 11
• The sum of 18897317901's digits is 54
• More coming soon!