18540243864

Names of 18540243864

• Cardinal: 18540243864 can be written as Eighteen billion, five hundred forty million, two hundred forty-three thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.8540243864 × 10¹⁰

Factors of 18540243864

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 795

Divisors of 18540243864

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 37 61 72 74 111 122 148 183 222 244 271 296 333 366 421 444 488 542 549 666 732 813 842 888 1084 1098 1263 1332 1464 1626 1684 2168 2196 2257 2439 2526 2664 3252 3368 3789 4392 4514 4878 5052 6504 6771 7578 9028 9756 10027 10104 13542 15156 15577 16531 18056 19512 20054 20313 25681 27084 30081 30312 31154 33062 40108 40626 46731 49593 51362 54168 60162 62308 66124 77043 80216 81252 90243 93462 99186 102724 114091 120324 124616 132248 140193 148779 154086 162504 180486 186924 198372 205448 228182 231129 240648 280386 297558 308172 342273 360972 373848 396744 456364 462258 560772 595116 611647 616344 684546 721944 912728 924516 950197 1026819 1121544 1190232 1223294 1369092 1834941 1849032 1900394 2053638 2446588 2738184 2850591 3669882 3800788 4107276 4221367 4893176 5504823 5701182 6959551 7339764 7601576 8214552 8442734 8551773 11009646 11402364 12664101 13919102 14679528 16885468 17103546 20878653 22019292 22804728 25328202 27838204 33770936 34207092 37992303 41757306 44038584 50656404 55676408 62635959 68414184 75984606 83514612 101312808 125271918 151969212 167029224 250543836 257503387 303938424 501087672 515006774 772510161 1030013548 1545020322 2060027096 2317530483 3090040644 4635060966 6180081288 9270121932 18540243864
• Sum of all divisors σ(n): 52734065280
• Sum of proper divisors (its aliquot sum) s(n): 34193821416
• 18540243864 is an abundant number, because the sum of its proper divisors (34193821416) is greater than itself. Its abundance is 15653577552

Bases of 18540243864

• Binary: 10001010001000101011010101110011000₂
• Hexadecimal: 0x45115AB98
• Base-36: 8IMDRQ0

Squares and roots of 18540243864

• 18540243864 squared (18540243864²) is 343740642536589650496
• 18540243864 cubed (18540243864³) is 6373035338596423663094368556544
• The square root of 18540243864 is 136162.5641062917
• The cube root of 18540243864 is 2646.7026207099

Scales and comparisons

• 18,540,243,864 seconds is equal to 589 years, 27 weeks, 1 day, 3 hours, 44 minutes, 24 seconds.
• To count from 1 to 18,540,243,864 would take you about one thousand, one hundred seventy-nine 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 18540243864 cubic inches would be around 220.6 feet tall.

Recreational maths with 18540243864

• 18540243864 backwards is 46834204581
• The number of decimal digits it has is: 11
• The sum of 18540243864's digits is 45
• More coming soon!