18439487489472

Names of 18439487489472

• Cardinal: 18439487489472 can be written as Eighteen trillion, four hundred thirty-nine billion, four hundred eighty-seven million, four hundred eighty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8439487489472 × 10¹³

Factors of 18439487489472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 13719856775

Divisors of 18439487489472

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 13719856763 27439713526 41159570289 54879427052 82319140578 96038997341 109758854104 164638281156 192077994682 219517708208 288116992023 329276562312 384155989364 439035416416 576233984046 658553124624 768311978728 878070832832 1152467968092 1317106249248 1536623957456 2304935936184 2634212498496 3073247914912 4609871872368 6146495829824 9219743744736 18439487489472
• Sum of all divisors σ(n): 55757497888896
• Sum of proper divisors (its aliquot sum) s(n): 37318010399424
• 18439487489472 is an abundant number, because the sum of its proper divisors (37318010399424) is greater than itself. Its abundance is 18878522909952

Bases of 18439487489472

• Binary: 100001100010101000111000110100000010111000000₂
• Hexadecimal: 0x10C5471A05C0
• Base-36: 6JAZERA2O

Squares and roots of 18439487489472

• 18439487489472 squared (18439487489472²) is 340014698874394401310838784
• 18439487489472 cubed (18439487489472³) is 6269696786130984883291571115082689282048
• The square root of 18439487489472 is 4294122.4353145777
• The cube root of 18439487489472 is 26418.9943509039

Scales and comparisons

• 18,439,487,489,472 seconds is equal to 586,318 years, 34 weeks, 4 days, 2 hours, 11 minutes, 12 seconds.
• To count from 1 to 18,439,487,489,472 would take you about one million, four hundred sixty-five thousand, seven hundred ninety-six 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 18439487489472 cubic inches would be around 2201.6 feet tall.

Recreational maths with 18439487489472

• 18439487489472 backwards is 27498478493481
• The number of decimal digits it has is: 14
• The sum of 18439487489472's digits is 78
• More coming soon!