7942490388

Names of 7942490388

• Cardinal: 7942490388 can be written as Seven billion, nine hundred forty-two million, four hundred ninety thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 7.942490388 × 10⁹

Factors of 7942490388

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1093

Divisors of 7942490388

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 199 251 252 398 502 597 631 753 796 1004 1194 1262 1393 1506 1757 1791 1893 2259 2388 2524 2786 3012 3514 3582 3786 4179 4417 4518 5271 5572 5679 7028 7164 7572 8358 8834 9036 10542 11358 12537 13251 15813 16716 17668 21084 22716 25074 26502 31626 39753 49949 50148 53004 63252 79506 99898 125569 149847 158381 159012 199796 251138 299694 316762 349643 376707 449541 475143 502276 599388 633524 699286 753414 878983 899082 950286 1048929 1108667 1130121 1398572 1425429 1506828 1757966 1798164 1900572 2097858 2217334 2260242 2636949 2850858 3146787 3326001 3515932 4195716 4434668 4520484 5273898 5701716 6293574 6652002 7910847 9978003 10547796 12587148 13304004 15821694 19956006 31517819 31643388 39912012 63035638 94553457 126071276 189106914 220624733 283660371 378213828 441249466 567320742 661874199 882498932 1134641484 1323748398 1985622597 2647496796 3971245194 7942490388
• Sum of all divisors σ(n): 23188838400
• Sum of proper divisors (its aliquot sum) s(n): 15246348012
• 7942490388 is an abundant number, because the sum of its proper divisors (15246348012) is greater than itself. Its abundance is 7303857624

Bases of 7942490388

• Binary: 111011001011010001100100100010100₂
• Hexadecimal: 0x1D968C914
• Base-36: 3NCR4T0

Squares and roots of 7942490388

• 7942490388 squared (7942490388²) is 63083153563472390544
• 7942490388 cubed (7942490388³) is 501037340822607409799102091072
• The square root of 7942490388 is 89120.6507381987
• The cube root of 7942490388 is 1995.1960023757

Scales and comparisons

• 7,942,490,388 seconds is equal to 252 years, 28 weeks, 2 days, 23 hours, 19 minutes, 48 seconds.
• To count from 1 to 7,942,490,388 would take you about five hundred 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 7942490388 cubic inches would be around 166.3 feet tall.

Recreational maths with 7942490388

• 7942490388 backwards is 8830942497
• The number of decimal digits it has is: 10
• The sum of 7942490388's digits is 54
• More coming soon!