3987194938028428

Names of 3987194938028428

• Cardinal: 3987194938028428 can be written as Three quadrillion, nine hundred eighty-seven trillion, one hundred ninety-four billion, nine hundred thirty-eight million, twenty-eight thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 3.987194938028428 × 10¹⁵

Factors of 3987194938028428

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 118235

Divisors of 3987194938028428

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 4 7 14 28 43717 74509 87434 149018 174868 298036 306019 521563 612038 1043126 1224076 2086252 1911176089 3257309953 3822352178 6514619906 7644704356 13029239812 13378232623 22801169671 26756465246 45602339342 53512930492 91204678684 142399819215301 284799638430602 569599276861204 996798734507107 1993597469014214 3987194938028428
• Sum of all divisors σ(n): 7974679317895920
• Sum of proper divisors (its aliquot sum) s(n): 3987484379867492
• 3987194938028428 is an abundant number, because the sum of its proper divisors (3987484379867492) is greater than itself. Its abundance is 289441839064

Bases of 3987194938028428

• Binary: 1110001010100101010100101001111011100111000110001100₂
• Hexadecimal: 0xE2A5529EE718C
• Base-36: 139CC2FS2A4

Squares and roots of 3987194938028428

• 3987194938028428 squared (3987194938028428²) is 15897723473839519799395736151184
• 3987194938028428 cubed (3987194938028428³) is 63387322561068649251415764509641669493897858752
• The square root of 3987194938028428 is 63144239.1515522815
• The cube root of 3987194938028428 is 158570.5343804531

Scales and comparisons

• 3,987,194,938,028,428 seconds is equal to 126,780,465 years, 42 weeks, 6 days, 12 hours, 20 minutes, 28 seconds.
• To count from 1 to 3,987,194,938,028,428 would take you about three hundred eighty million, three hundred forty-one thousand, three hundred ninety-seven 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 3987194938028428 cubic inches would be around 13214.2 feet tall.

Recreational maths with 3987194938028428

• 3987194938028428 backwards is 8248208394917893
• The number of decimal digits it has is: 16
• The sum of 3987194938028428's digits is 85
• More coming soon!