18071449220

Names of 18071449220

• Cardinal: 18071449220 can be written as Eighteen billion, seventy-one million, four hundred forty-nine thousand, two hundred twenty.

Scientific notation

• Scientific notation: 1.807144922 × 10¹⁰

Factors of 18071449220

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 140968

Divisors of 18071449220

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 11 20 22 44 53 55 106 110 121 212 220 242 265 484 530 583 605 1060 1166 1210 2332 2420 2915 5830 6413 11660 12826 25652 32065 64130 128260 140897 281794 563588 704485 1408970 1549867 2817940 3099734 6199468 7467541 7749335 14935082 15498670 17048537 29870164 30997340 34097074 37337705 68194148 74675410 82142951 85242685 149350820 164285902 170485370 328571804 340970740 410714755 821429510 903572461 1642859020 1807144922 3614289844 4517862305 9035724610 18071449220
• Sum of all divisors σ(n): 42501036312
• Sum of proper divisors (its aliquot sum) s(n): 24429587092
• 18071449220 is an abundant number, because the sum of its proper divisors (24429587092) is greater than itself. Its abundance is 6358137872

Bases of 18071449220

• Binary: 10000110101001001000110111010000100₂
• Hexadecimal: 0x435246E84
• Base-36: 8AV9VGK

Squares and roots of 18071449220

• 18071449220 squared (18071449220²) is 326577276911038608400
• 18071449220 cubed (18071449220³) is 5901724676103712669160065448000
• The square root of 18071449220 is 134430.0904559689
• The cube root of 18071449220 is 2624.2044074805

Scales and comparisons

• 18,071,449,220 seconds is equal to 574 years, 32 weeks, 7 hours, 20 seconds.
• To count from 1 to 18,071,449,220 would take you about one thousand, one hundred forty-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 18071449220 cubic inches would be around 218.7 feet tall.

Recreational maths with 18071449220

• 18071449220 backwards is 02294417081
• The number of decimal digits it has is: 11
• The sum of 18071449220's digits is 38
• More coming soon!