1042864389

Names of 1042864389

• Cardinal: 1042864389 can be written as One billion, forty-two million, eight hundred sixty-four thousand, three hundred eighty-nine.

Scientific notation

• Scientific notation: 1.042864389 × 10⁹

Factors of 1042864389

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 39

Divisors of 1042864389

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 27 29 63 81 87 189 203 243 261 567 609 729 783 841 1701 1827 2187 2349 2523 5103 5481 5887 6561 7047 7569 15309 16443 17661 19683 21141 22707 45927 49329 52983 59049 63423 68121 137781 147987 158949 177147 190269 204363 413343 443961 476847 570807 613089 1240029 1331883 1430541 1712421 1839267 3995649 4291623 5137263 5517801 11986947 12874869 16553403 35960841 38624607 49660209 115873821 148980627 347621463 1042864389
• Sum of all divisors σ(n): 1851536960
• Sum of proper divisors (its aliquot sum) s(n): 808672571
• 1042864389 is a deficient number, because the sum of its proper divisors (808672571) is less than itself. Its deficiency is 234191818

Bases of 1042864389

• Binary: 111110001010001101100100000101₂
• Hexadecimal: 0x3E28D905
• Base-36: H8W7B9

Squares and roots of 1042864389

• 1042864389 squared (1042864389²) is 1087566133844343321
• 1042864389 cubed (1042864389³) is 1134183991668673318560895869
• The square root of 1042864389 is 32293.4109223539
• The cube root of 1042864389 is 1014.0887058701

Scales and comparisons

• 1,042,864,389 seconds is equal to 33 years, 8 weeks, 2 days, 4 hours, 33 minutes, 9 seconds.
• To count from 1 to 1,042,864,389 would take you about sixty-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 1042864389 cubic inches would be around 84.5 feet tall.

Recreational maths with 1042864389

• 1042864389 backwards is 9834682401
• The number of decimal digits it has is: 10
• The sum of 1042864389's digits is 45
• More coming soon!