18237547817940

Names of 18237547817940

• Cardinal: 18237547817940 can be written as Eighteen trillion, two hundred thirty-seven billion, five hundred forty-seven million, eight hundred seventeen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.823754781794 × 10¹³

Factors of 18237547817940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 27632648230

Divisors of 18237547817940

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 27632648209 55265296418 82897944627 110530592836 138163241045 165795889254 276326482090 303959130299 331591778508 414489723135 552652964180 607918260598 828979446270 911877390897 1215836521196 1519795651495 1657958892540 1823754781794 3039591302990 3647509563588 4559386954485 6079182605980 9118773908970 18237547817940
• Sum of all divisors σ(n): 55707418791360
• Sum of proper divisors (its aliquot sum) s(n): 37469870973420
• 18237547817940 is an abundant number, because the sum of its proper divisors (37469870973420) is greater than itself. Its abundance is 19232323155480

Bases of 18237547817940

• Binary: 100001001011001000010100011110010101111010100₂
• Hexadecimal: 0x1096428F2BD4
• Base-36: 6GQ7P3AAC

Squares and roots of 18237547817940

• 18237547817940 squared (18237547817940²) is 332608150411648055385843600
• 18237547817940 cubed (18237547817940³) is 6065957047769011305261336211946114184000
• The square root of 18237547817940 is 4270544.2062973661
• The cube root of 18237547817940 is 26322.1977715125

Scales and comparisons

• 18,237,547,817,940 seconds is equal to 579,897 years, 31 weeks, 4 days, 8 hours, 59 minutes.
• To count from 1 to 18,237,547,817,940 would take you about one million, four hundred forty-nine thousand, seven hundred forty-four 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 18237547817940 cubic inches would be around 2193.5 feet tall.

Recreational maths with 18237547817940

• 18237547817940 backwards is 04971874573281
• 18237547817940 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18237547817940's digits is 66
• More coming soon!