40281591987

Names of 40281591987

• Cardinal: 40281591987 can be written as Forty billion, two hundred eighty-one million, five hundred ninety-one thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 4.0281591987 × 10¹⁰

Factors of 40281591987

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1247

Divisors of 40281591987

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 13 17 21 39 43 51 61 63 91 117 119 129 153 183 221 273 301 357 387 427 549 559 663 731 793 819 903 1037 1071 1103 1281 1547 1677 1989 2193 2379 2623 2709 3111 3309 3843 3913 4641 5031 5117 5551 6579 7137 7259 7721 7869 9333 9503 9927 11739 13481 13923 14339 15351 16653 18361 18751 21777 23163 23607 28509 34099 35217 40443 43017 44591 46053 47429 49959 55083 56253 65331 66521 67283 69489 85527 94367 100373 102297 121329 129051 131257 133773 142287 165249 168759 199563 201849 238693 243763 283101 301119 306891 312137 332003 393771 401319 426861 470981 579683 598689 605547 616577 716079 731289 806293 849303 874679 903357 936411 996009 1143811 1181313 1412943 1706341 1739049 1849731 2148237 2193867 2418879 2624037 2809233 2893169 2988027 3431433 4057781 4238829 4316039 5119023 5217147 5549193 5644051 6122753 7256637 7872111 8006677 8679507 10294299 10481809 12173343 12948117 14869543 15357069 16932153 18368259 20252183 24020031 26038521 31445427 36520029 37611197 38844351 44608629 49183873 50796459 55104777 60756549 72060093 73372663 94336281 104086801 112833591 133825887 147551619 182269647 220117989 263278379 312260403 338500773 344287111 442654857 639390349 660353967 789835137 936781209 1032861333 1918171047 2369505411 3098583999 4475732443 5754513141 13427197329 40281591987
• Sum of all divisors σ(n): 78930948096
• Sum of proper divisors (its aliquot sum) s(n): 38649356109
• 40281591987 is a deficient number, because the sum of its proper divisors (38649356109) is less than itself. Its deficiency is 1632235878

Bases of 40281591987

• Binary: 100101100000111110000101000010110011₂
• Hexadecimal: 0x960F850B3
• Base-36: II6MBAR

Squares and roots of 40281591987

• 40281591987 squared (40281591987²) is 1622606653007142608169
• 40281591987 cubed (40281591987³) is 65361179151825405138986671141803
• The square root of 40281591987 is 200702.7453399679
• The cube root of 40281591987 is 3427.9583933329

Scales and comparisons

• 40,281,591,987 seconds is equal to 1,280 years, 43 weeks, 1 day, 3 hours, 6 minutes, 27 seconds.
• To count from 1 to 40,281,591,987 would take you about two thousand, five hundred sixty-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 40281591987 cubic inches would be around 285.7 feet tall.

Recreational maths with 40281591987

• 40281591987 backwards is 78919518204
• The number of decimal digits it has is: 11
• The sum of 40281591987's digits is 54
• More coming soon!