18642431210

Names of 18642431210

• Cardinal: 18642431210 can be written as Eighteen billion, six hundred forty-two million, four hundred thirty-one thousand, two hundred ten.

Scientific notation

• Scientific notation: 1.864243121 × 10¹⁰

Factors of 18642431210

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 103503

Divisors of 18642431210

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 13 19 26 38 65 73 95 130 146 190 247 365 494 730 949 1235 1387 1898 2470 2774 4745 6935 9490 13870 18031 36062 90155 103391 180310 206782 516955 1033910 1344083 1964429 2688166 3928858 6720415 7547543 9822145 13440830 15095086 19644290 25537577 37737715 51075154 75475430 98118059 127687885 143403317 196236118 255375770 286806634 490590295 717016585 981180590 1434033170 1864243121 3728486242 9321215605 18642431210
• Sum of all divisors σ(n): 38561080320
• Sum of proper divisors (its aliquot sum) s(n): 19918649110
• 18642431210 is an abundant number, because the sum of its proper divisors (19918649110) is greater than itself. Its abundance is 1276217900

Bases of 18642431210

• Binary: 10001010111001011001110110011101010₂
• Hexadecimal: 0x4572CECEA
• Base-36: 8KB7ZZE

Squares and roots of 18642431210

• 18642431210 squared (18642431210²) is 347540241419582064100
• 18642431210 cubed (18642431210³) is 6478995043371351376934060561000
• The square root of 18642431210 is 136537.2887163063
• The cube root of 18642431210 is 2651.5562810607

Scales and comparisons

• 18,642,431,210 seconds is equal to 592 years, 40 weeks, 21 hours, 6 minutes, 50 seconds.
• To count from 1 to 18,642,431,210 would take you about one thousand, one hundred eighty-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 18642431210 cubic inches would be around 221 feet tall.

Recreational maths with 18642431210

• 18642431210 backwards is 01213424681
• The number of decimal digits it has is: 11
• The sum of 18642431210's digits is 32
• More coming soon!