18368181225

Names of 18368181225

• Cardinal: 18368181225 can be written as Eighteen billion, three hundred sixty-eight million, one hundred eighty-one thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 1.8368181225 × 10¹⁰

Factors of 18368181225

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2000

Divisors of 18368181225

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 9 15 23 25 31 45 61 69 75 93 115 155 183 207 225 279 305 345 465 549 575 713 775 915 1035 1395 1403 1525 1725 1877 1891 2139 2325 2745 3565 4209 4575 5175 5631 5673 6417 6975 7015 9385 9455 10695 12627 13725 16893 17019 17825 21045 28155 28365 32085 35075 43171 43493 46925 47275 53475 58187 63135 84465 85095 105225 114497 129513 130479 140775 141825 160425 174561 215855 217465 290935 315675 343491 388539 391437 422325 425475 523683 572485 647565 652395 872805 1030473 1079275 1087325 1338301 1454675 1717455 1942695 1957185 2618415 2633431 2862425 3237825 3261975 3549407 4014903 4364025 5152365 6691505 7900293 8587275 9713475 9785925 10648221 12044709 13092075 13167155 17747035 20074515 23700879 25761825 31944663 33457525 39501465 53241105 60223545 65835775 81636361 88735175 100372575 118504395 159723315 197507325 244909083 266205525 301117725 408181805 592521975 734727249 798616575 1224545415 2040909025 3673636245 6122727075 18368181225
• Sum of all divisors σ(n): 36037407744
• Sum of proper divisors (its aliquot sum) s(n): 17669226519
• 18368181225 is a deficient number, because the sum of its proper divisors (17669226519) is less than itself. Its deficiency is 698954706

Bases of 18368181225

• Binary: 10001000110110101000011001111101001₂
• Hexadecimal: 0x446D433E9
• Base-36: 8FRXVC9

Squares and roots of 18368181225

• 18368181225 squared (18368181225²) is 337390081514442500625
• 18368181225 cubed (18368181225³) is 6197242160774802306322175765625
• The square root of 18368181225 is 135529.2633529749
• The cube root of 18368181225 is 2638.4895909987

Scales and comparisons

• 18,368,181,225 seconds is equal to 584 years, 2 weeks, 4 days, 16 hours, 33 minutes, 45 seconds.
• To count from 1 to 18,368,181,225 would take you about one thousand, one hundred sixty-eight 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 18368181225 cubic inches would be around 219.9 feet tall.

Recreational maths with 18368181225

• 18368181225 backwards is 52218186381
• 18368181225 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18368181225's digits is 45
• More coming soon!