18045813825

Names of 18045813825

• Cardinal: 18045813825 can be written as Eighteen billion, forty-five million, eight hundred thirteen thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 1.8045813825 × 10¹⁰

Factors of 18045813825

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 480

Divisors of 18045813825

• Number of divisors d(n): 240
• Complete list of divisors:
  1 3 5 9 13 15 19 25 27 39 45 57 65 75 81 95 109 117 135 171 195 225 247 285 325 327 331 351 405 475 513 545 585 675 741 855 975 981 993 1053 1235 1417 1425 1539 1635 1655 1755 2025 2071 2223 2565 2725 2925 2943 2979 3705 4251 4275 4303 4905 4965 5265 6175 6213 6289 6669 7085 7695 8175 8275 8775 8829 8937 10355 11115 12753 12825 12909 14715 14895 18525 18639 18867 20007 21255 21515 24525 24825 26325 26811 26923 31065 31445 33345 35425 36079 38259 38475 38727 44145 44685 51775 55575 55917 56601 63765 64545 73575 74475 80769 81757 93195 94335 100035 106275 107575 108237 114777 116181 134055 134615 155325 157225 166725 167751 169803 180395 191295 193635 220725 223425 242307 245271 279585 283005 318825 322725 324711 348543 403845 408785 465975 469027 471675 500175 509409 541185 573885 580905 670275 673075 685501 726921 735813 838755 849015 901975 956475 968175 974133 1211535 1226355 1397925 1407081 1415025 1623555 1742715 2019225 2043925 2056503 2180763 2207439 2345135 2547045 2705925 2869425 2904525 2922399 3427505 3634605 3679065 4193775 4221243 4245075 4870665 6057675 6131775 6169509 6622317 7035405 8117775 8713575 8911513 10282515 10903815 11037195 11725675 12663729 12735225 14611995 17137525 18173025 18395325 18508527 21106215 24353325 26734539 30847545 33111585 35177025 37991187 44557565 51412575 54519075 55185975 55525581 63318645 73059975 80203617 92542635 105531075 133672695 154237725 165557925 189955935 222787825 240610851 277627905 316593225 401018085 462713175 668363475 721832553 949779675 1203054255 1388139525 2005090425 3609162765 6015271275 18045813825
• Sum of all divisors σ(n): 38356225600
• Sum of proper divisors (its aliquot sum) s(n): 20310411775
• 18045813825 is an abundant number, because the sum of its proper divisors (20310411775) is greater than itself. Its abundance is 2264597950

Bases of 18045813825

• Binary: 10000110011100111010100010001000001₂
• Hexadecimal: 0x4339D4441
• Base-36: 8AG0F29

Squares and roots of 18045813825

• 18045813825 squared (18045813825²) is 325651396606561130625
• 18045813825 cubed (18045813825³) is 5876644475013238936740255890625
• The square root of 18045813825 is 134334.7081918891
• The cube root of 18045813825 is 2622.9629584079

Scales and comparisons

• 18,045,813,825 seconds is equal to 573 years, 41 weeks, 4 days, 14 hours, 3 minutes, 45 seconds.
• To count from 1 to 18,045,813,825 would take you about one thousand, one hundred forty-seven 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 18045813825 cubic inches would be around 218.6 feet tall.

Recreational maths with 18045813825

• 18045813825 backwards is 52831854081
• 18045813825 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18045813825's digits is 45
• More coming soon!