18090245705

Names of 18090245705

• Cardinal: 18090245705 can be written as Eighteen billion, ninety million, two hundred forty-five thousand, seven hundred five.

Scientific notation

• Scientific notation: 1.8090245705 × 10¹⁰

Factors of 18090245705

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 355

Divisors of 18090245705

• Number of divisors d(n): 128
• Complete list of divisors:
  1 5 7 19 35 41 61 73 95 133 149 205 287 305 365 427 511 665 745 779 1043 1159 1387 1435 2135 2501 2555 2831 2993 3895 4453 5215 5453 5795 6109 6935 8113 9089 9709 10877 12505 14155 14965 17507 19817 20951 22265 27265 30545 31171 40565 42763 45445 47519 48545 54385 56867 63623 76139 84607 87535 99085 104755 116071 155855 172691 182573 206663 213815 237595 284335 318115 332633 372649 380695 398069 423035 445957 580355 592249 663497 812497 863455 912865 1033315 1208837 1278011 1446641 1663165 1863245 1990345 2229785 2608543 2961245 3121699 3317485 3468887 4062485 4644479 6044185 6390055 7080331 7233205 8473183 12606443 13042715 15608495 17344435 23222395 24282209 27203377 35401655 42365915 49562317 59312281 63032215 88245101 121411045 136016885 190423639 247811585 296561405 441225505 516864163 952118195 2584320815 3618049141 18090245705
• Sum of all divisors σ(n): 27748224000
• Sum of proper divisors (its aliquot sum) s(n): 9657978295
• 18090245705 is a deficient number, because the sum of its proper divisors (9657978295) is less than itself. Its deficiency is 8432267410

Bases of 18090245705

• Binary: 10000110110010000110011111001001001₂
• Hexadecimal: 0x436433E49
• Base-36: 8B6GQX5

Squares and roots of 18090245705

• 18090245705 squared (18090245705²) is 327256989667270947025
• 18090245705 cubed (18090245705³) is 5920159351759577628490288777625
• The square root of 18090245705 is 134499.9840334563
• The cube root of 18090245705 is 2625.1139218281

Scales and comparisons

• 18,090,245,705 seconds is equal to 575 years, 11 weeks, 20 hours, 15 minutes, 5 seconds.
• To count from 1 to 18,090,245,705 would take you about one thousand, one hundred fifty 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 18090245705 cubic inches would be around 218.8 feet tall.

Recreational maths with 18090245705

• 18090245705 backwards is 50754209081
• 18090245705 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18090245705's digits is 41
• More coming soon!