18478220046

Names of 18478220046

• Cardinal: 18478220046 can be written as Eighteen billion, four hundred seventy-eight million, two hundred twenty thousand and forty-six.

Scientific notation

• Scientific notation: 1.8478220046 × 10¹⁰

Factors of 18478220046

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6426

Divisors of 18478220046

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 11 13 22 26 33 39 47 66 73 78 94 141 143 146 219 282 286 429 438 517 611 803 858 949 1034 1222 1551 1606 1833 1898 2409 2847 3102 3431 3666 4818 5694 6277 6721 6862 10293 10439 12554 13442 18831 20163 20586 20878 31317 37662 37741 40326 44603 62634 69047 75482 81601 89206 113223 133809 138094 163202 207141 226446 244803 267618 295019 414282 458221 489606 490633 590038 885057 897611 916442 981266 1374663 1471899 1770114 1795222 2692833 2749326 2943798 3245209 3835247 5040431 5385666 5956873 6490418 7670494 9735627 10080862 11505741 11913746 15121293 17870619 19471254 21536387 23011482 30242586 35741238 42187717 43072774 64609161 65525603 84375434 126563151 129218322 131051206 196576809 236900257 253126302 279973031 393153618 473800514 559946062 710700771 839919093 1421401542 1679838186 3079703341 6159406682 9239110023 18478220046
• Sum of all divisors σ(n): 44955703296
• Sum of proper divisors (its aliquot sum) s(n): 26477483250
• 18478220046 is an abundant number, because the sum of its proper divisors (26477483250) is greater than itself. Its abundance is 7999263204

Bases of 18478220046

• Binary: 10001001101011000110100001100001110₂
• Hexadecimal: 0x44D63430E
• Base-36: 8HLGDU6

Squares and roots of 18478220046

• 18478220046 squared (18478220046²) is 341444616068396242116
• 18478220046 cubed (18478220046³) is 6309288749233813148138940657336
• The square root of 18478220046 is 135934.6168052863
• The cube root of 18478220046 is 2643.7479310729

Scales and comparisons

• 18,478,220,046 seconds is equal to 587 years, 28 weeks, 4 days, 6 hours, 54 minutes, 6 seconds.
• To count from 1 to 18,478,220,046 would take you about one thousand, one hundred seventy-five 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 18478220046 cubic inches would be around 220.3 feet tall.

Recreational maths with 18478220046

• 18478220046 backwards is 64002287481
• The number of decimal digits it has is: 11
• The sum of 18478220046's digits is 42
• More coming soon!