18261942946

Names of 18261942946

• Cardinal: 18261942946 can be written as Eighteen billion, two hundred sixty-one million, nine hundred forty-two thousand, nine hundred forty-six.

Scientific notation

• Scientific notation: 1.8261942946 × 10¹⁰

Factors of 18261942946

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 302

Divisors of 18261942946

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 13 17 26 34 73 146 169 197 221 289 338 394 442 578 949 1241 1898 2197 2482 2561 2873 3349 3757 4394 5122 5746 6698 7514 12337 14381 16133 21097 24674 28762 32266 33293 37349 42194 43537 48841 56933 66586 74698 87074 97682 113866 160381 186953 209729 244477 274261 320762 373906 419458 432809 488954 548522 565981 634933 740129 865618 1131962 1269866 1480258 2430389 2726477 3178201 3565393 4156109 4860778 5452954 6356402 7130786 7357753 8312218 9621677 14715506 19243354 31595057 41316613 46350109 54029417 63190114 82633226 92700218 108058834 125081801 250163602 537115969 702382421 1074231938 1404764842 9130971473 18261942946
• Sum of all divisors σ(n): 32116890960
• Sum of proper divisors (its aliquot sum) s(n): 13854948014
• 18261942946 is a deficient number, because the sum of its proper divisors (13854948014) is less than itself. Its deficiency is 4406994932

Bases of 18261942946

• Binary: 10001000000011111110010001010100010₂
• Hexadecimal: 0x4407F22A2
• Base-36: 8E0OTCY

Squares and roots of 18261942946

• 18261942946 squared (18261942946²) is 333498560162959158916
• 18261942946 cubed (18261942946³) is 6090331678269108622652139206536
• The square root of 18261942946 is 135136.7564580415
• The cube root of 18261942946 is 2633.3929013961

Scales and comparisons

• 18,261,942,946 seconds is equal to 580 years, 35 weeks, 1 hour, 55 minutes, 46 seconds.
• To count from 1 to 18,261,942,946 would take you about one thousand, one hundred sixty-one 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 18261942946 cubic inches would be around 219.4 feet tall.

Recreational maths with 18261942946

• 18261942946 backwards is 64924916281
• The number of decimal digits it has is: 11
• The sum of 18261942946's digits is 52
• More coming soon!