311950242 has 54 divisors (see below), whose sum is σ = 710481681. Its totient is φ = 98912880.

The previous prime is 311950237. The next prime is 311950253. The reversal of 311950242 is 242059113.

311950242 is a `hidden beast` number, since 3 + 119 + 502 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 188540361 + 123409881 = 13731^2 + 11109^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12489.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 1723392 + ... + 1723572.

Almost surely, 2^311950242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311950242

311950242 is an abundant number, since it is smaller than the sum of its proper divisors (398531439).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311950242 is a wasteful number, since it uses less digits than its factorization.

311950242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 311950242 is about 17662.1131804776. The cubic root of 311950242 is about 678.2062311520.

It can be divided in two parts, 3119 and 50242, that added together give a square (53361 = 231²).

The spelling of 311950242 in words is "three hundred eleven million, nine hundred fifty thousand, two hundred forty-two".