18729803241955840

Names of 18729803241955840

• Cardinal: 18729803241955840 can be written as Eighteen quadrillion, seven hundred twenty-nine trillion, eight hundred three billion, two hundred forty-one million, nine hundred fifty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.872980324195584 × 10¹⁶

Factors of 18729803241955840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 18459514

Divisors of 18729803241955840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 73 80 128 146 160 256 292 320 365 512 584 640 730 1168 1280 1460 2336 2560 2920 4672 5431 5840 9344 10862 11680 18688 21724 23360 27155 37376 43448 46720 54310 86896 93440 108620 173792 186880 217240 347584 396463 434480 695168 792926 868960 1390336 1585852 1737920 1982315 2780672 3171704 3475840 3964630 6343408 6951680 7929260 12686816 13903360 15858520 18454003 25373632 31717040 36908006 50747264 63434080 73816012 92270015 101494528 126868160 147632024 184540030 202989056 253736320 295264048 369080060 507472640 590528096 738160120 1014945280 1181056192 1347142219 1476320240 2362112384 2694284438 2952640480 4724224768 5388568876 5905280960 6735711095 9448449536 10777137752 11810561920 13471422190 21554275504 23621123840 26942844380 43108551008 47242247680 53885688760 86217102016 100223690293 107771377520 172434204032 200447380586 215542755040 344868408064 400894761172 431085510080 501118451465 689736816128 801789522344 862171020160 1002236902930 1603579044688 1724342040320 2004473805860 3207158089376 3448684080640 4008947611720 6414316178752 7316329391389 8017895223440 12828632357504 14632658782778 16035790446880 25657264715008 29265317565556 32071580893760 36581646956945 51314529430016 58530635131112 64143161787520 73163293913890 117061270262224 128286323575040 146326587827780 234122540524448 256572647150080 292653175655560 468245081048896 585306351311120 936490162097792 1170612702622240 1872980324195584 2341225405244480 3745960648391168 4682450810488960 9364901620977920 18729803241955840
• Sum of all divisors σ(n): 45531187312254336
• Sum of proper divisors (its aliquot sum) s(n): 26801384070298496
• 18729803241955840 is an abundant number, because the sum of its proper divisors (26801384070298496) is greater than itself. Its abundance is 8071580828342656

Bases of 18729803241955840

• Binary: 1000010100010101010100000100100111100110010001000000000₂
• Hexadecimal: 0x428AA824F32200
• Base-36: 54F5STP2KN4

Squares and roots of 18729803241955840

• 18729803241955840 squared (18729803241955840²) is 350805529482379494341668510105600
• 18729803241955840 cubed (18729803241955840³) is 6570518543395106462812961637795048560948936704000
• The square root of 18729803241955840 is 136856871.3728172291
• The cube root of 18729803241955840 is 265569.2202124595

Scales and comparisons

• 18,729,803,241,955,840 seconds is equal to 595,549,808 years, 3 days, 5 hours, 30 minutes, 40 seconds.
• To count from 1 to 18,729,803,241,955,840 would take you about one billion, seven hundred eighty-six million, six hundred forty-nine thousand, four hundred twenty-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 18729803241955840 cubic inches would be around 22130.8 feet tall.

Recreational maths with 18729803241955840

• 18729803241955840 backwards is 04855914230892781
• The number of decimal digits it has is: 17
• The sum of 18729803241955840's digits is 76
• More coming soon!