18311779794

Names of 18311779794

• Cardinal: 18311779794 can be written as Eighteen billion, three hundred eleven million, seven hundred seventy-nine thousand, seven hundred ninety-four.

Scientific notation

• Scientific notation: 1.8311779794 × 10¹⁰

Factors of 18311779794

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3512

Divisors of 18311779794

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 31 33 42 62 66 77 93 154 186 217 231 341 421 434 462 651 682 842 1023 1263 1302 2046 2387 2526 2947 3037 4631 4774 5894 6074 7161 8841 9111 9262 13051 13893 14322 17682 18222 21259 26102 27786 32417 33407 39153 42518 63777 64834 66814 78306 91357 94147 97251 100221 127554 143561 182714 188294 194502 200442 233849 274071 282441 287122 430683 467698 548142 564882 659029 701547 861366 1004927 1035617 1278577 1318058 1403094 1977087 2009854 2071234 2557154 3014781 3106851 3835731 3954174 6029562 6213702 7249319 7671462 8950039 14064347 14498638 17900078 21747957 26850117 28128694 39635887 42193041 43495914 53700234 79271774 84386082 98450429 118907661 196900858 237815322 277451209 295351287 435994757 554902418 590702574 832353627 871989514 1307984271 1664707254 2615968542 3051963299 6103926598 9155889897 18311779794
• Sum of all divisors σ(n): 47260975104
• Sum of proper divisors (its aliquot sum) s(n): 28949195310
• 18311779794 is an abundant number, because the sum of its proper divisors (28949195310) is greater than itself. Its abundance is 10637415516

Bases of 18311779794

• Binary: 10001000011011101111001010111010010₂
• Hexadecimal: 0x4437795D2
• Base-36: 8EUCZPU

Squares and roots of 18311779794

• 18311779794 squared (18311779794²) is 335321279223946682436
• 18311779794 cubed (18311779794³) is 6140329425391298860364879498184
• The square root of 18311779794 is 135321.0249517791
• The cube root of 18311779794 is 2635.7862355945

Scales and comparisons

• 18,311,779,794 seconds is equal to 582 years, 13 weeks, 2 days, 21 hours, 29 minutes, 54 seconds.
• To count from 1 to 18,311,779,794 would take you about one thousand, one hundred sixty-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 18311779794 cubic inches would be around 219.6 feet tall.

Recreational maths with 18311779794

• 18311779794 backwards is 49797711381
• The number of decimal digits it has is: 11
• The sum of 18311779794's digits is 57
• More coming soon!