642402949140

Names of 642402949140

• Cardinal: 642402949140 can be written as Six hundred forty-two billion, four hundred two million, nine hundred forty-nine thousand, one hundred forty.

Scientific notation

• Scientific notation: 6.4240294914 × 10¹¹

Factors of 642402949140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 5851

Divisors of 642402949140

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 211 270 422 540 633 844 1055 1266 1303 1899 2110 2532 2606 3165 3798 3909 4220 4327 5212 5697 6330 6515 7596 7818 8654 9495 11394 11727 12660 12981 13030 15636 17308 18990 19545 21635 22788 23454 25962 26060 28485 35181 37980 38943 39090 43270 46908 51924 56970 58635 64905 70362 77886 78180 86540 113940 116829 117270 129810 140724 155772 175905 194715 233658 234540 259620 274933 351810 389430 467316 549866 584145 703620 778860 824799 912997 1099732 1168290 1374665 1649598 1825994 2336580 2474397 2738991 2749330 3299196 3651988 4123995 4564985 4948794 5477982 5498660 5638081 7423191 8216973 8247990 9129970 9897588 10955964 11276162 12371985 13694955 14846382 16433946 16495980 16914243 18259940 22552324 24650919 24743970 27389910 28190405 29692764 32867892 33828486 37115955 41084865 49301838 49487940 50742729 54779820 56380810 67656972 74231910 82169730 84571215 98603676 101485458 112761620 123254595 148463820 152228187 164339460 169142430 202970916 246509190 253713645 304456374 338284860 493018380 507427290 608912748 761140935 1014854580 1189635091 1522281870 2379270182 3044563740 3568905273 4758540364 5948175455 7137810546 10706715819 11896350910 14275621092 17844526365 21413431638 23792701820 32120147457 35689052730 42826863276 53533579095 64240294914 71378105460 107067158190 128480589828 160600737285 214134316380 321201474570 642402949140
• Sum of all divisors σ(n): 2010064465920
• Sum of proper divisors (its aliquot sum) s(n): 1367661516780
• 642402949140 is an abundant number, because the sum of its proper divisors (1367661516780) is greater than itself. Its abundance is 725258567640

Bases of 642402949140

• Binary: 1001010110010010001100110001100000010100₂
• Hexadecimal: 0x9592331814
• Base-36: 87464NX0

Squares and roots of 642402949140

• 642402949140 squared (642402949140²) is 412681549063769426739600
• 642402949140 cubed (642402949140³) is 265107844174229085662486214823944000
• The square root of 642402949140 is 801500.4361446099
• The cube root of 642402949140 is 8628.5107002703

Scales and comparisons

• 642,402,949,140 seconds is equal to 20,426 years, 22 weeks, 1 day, 7 hours, 39 minutes.
• To count from 1 to 642,402,949,140 would take you about forty thousand, eight hundred fifty-two 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 642402949140 cubic inches would be around 719 feet tall.

Recreational maths with 642402949140

• 642402949140 backwards is 041949204246
• 642402949140 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 642402949140's digits is 45
• More coming soon!