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1068311111 = 7163793229
BaseRepresentation
bin111111101011010…
…010001001000111
32202110012211100012
4333223102021013
54141441423421
6254001340435
735321331440
oct7753221107
92673184305
101068311111
114a9040a4a
1225993771b
1314043706a
14a1c502c7
1563bc695b
hex3fad2247

1068311111 has 8 divisors (see below), whose sum is σ = 1221685920. Its totient is φ = 915126048.

The previous prime is 1068311099. The next prime is 1068311113. The reversal of 1068311111 is 1111138601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1068311111 - 214 = 1068294727 is a prime.

It is a super-2 number, since 2×10683111112 = 2282577259772108642, which contains 22 as substring.

1068311111 is a modest number, since divided by 11111 gives 10683 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068311113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35156 + ... + 58073.

It is an arithmetic number, because the mean of its divisors is an integer number (152710740).

Almost surely, 21068311111 is an apocalyptic number.

1068311111 is a deficient number, since it is larger than the sum of its proper divisors (153374809).

1068311111 is an equidigital number, since it uses as much as digits as its factorization.

1068311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94873.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 1068311111 is about 32685.0288511422. The cubic root of 1068311111 is about 1022.2707040993.

Adding to 1068311111 its reverse (1111138601), we get a palindrome (2179449712).

The spelling of 1068311111 in words is "one billion, sixty-eight million, three hundred eleven thousand, one hundred eleven".

Divisors: 1 7 1637 11459 93229 652603 152615873 1068311111