Search a number
68568611 = 70199769
BaseRepresentation
bin1000001011001…
…00011000100011
311210000122110012
410011210120203
5120023143421
610445355135
71461552326
oct405443043
9153018405
1068568611
1135783681
121ab68aab
131128a157
14916c7bd
15604695b
hex4164623

68568611 has 4 divisors (see below), whose sum is σ = 68585400. Its totient is φ = 68551824.

The previous prime is 68568607. The next prime is 68568631. The reversal of 68568611 is 11686586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68568611 - 22 = 68568607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68568601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (17146350).

Almost surely, 268568611 is an apocalyptic number.

68568611 is a deficient number, since it is larger than the sum of its proper divisors (16789).

68568611 is an equidigital number, since it uses as much as digits as its factorization.

68568611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16788.

The product of its digits is 69120, while the sum is 41.

The square root of 68568611 is about 8280.6165833228. The cubic root of 68568611 is about 409.3000370946.

It can be divided in two parts, 685 and 68611, that added together give a palindrome (69296).

The spelling of 68568611 in words is "sixty-eight million, five hundred sixty-eight thousand, six hundred eleven".

Divisors: 1 7019 9769 68568611