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68526111 = 3125918143
BaseRepresentation
bin1000001010110…
…10000000011111
311202221111011010
410011122000133
5120020313421
610444430303
71461314403
oct405320037
9152844133
1068526111
1135754755
121ab48393
13112739c4
14915b103
156039076
hex415a01f

68526111 has 8 divisors (see below), whose sum is σ = 91445760. Its totient is φ = 45645272.

The previous prime is 68526097. The next prime is 68526137. The reversal of 68526111 is 11162586.

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 68526111 - 29 = 68525599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68526811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5295 + ... + 12848.

It is an arithmetic number, because the mean of its divisors is an integer number (11430720).

Almost surely, 268526111 is an apocalyptic number.

68526111 is a deficient number, since it is larger than the sum of its proper divisors (22919649).

68526111 is a wasteful number, since it uses less digits than its factorization.

68526111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19405.

The product of its digits is 2880, while the sum is 30.

The square root of 68526111 is about 8278.0499515284. The cubic root of 68526111 is about 409.2154558919.

Adding to 68526111 its reverse (11162586), we get a palindrome (79688697).

It can be divided in two parts, 685 and 26111, that added together give a triangular number (26796 = T231).

The spelling of 68526111 in words is "sixty-eight million, five hundred twenty-six thousand, one hundred eleven".

Divisors: 1 3 1259 3777 18143 54429 22842037 68526111