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311349074 = 2155674537
BaseRepresentation
bin10010100011101…
…100111101010010
3210200212011122012
4102203230331102
51114201132244
650521142522
710500265151
oct2243547522
9720764565
10311349074
1114a826193
128832aa42
134c67272a
142d4c9598
151c50189e
hex128ecf52

311349074 has 4 divisors (see below), whose sum is σ = 467023614. Its totient is φ = 155674536.

The previous prime is 311349041. The next prime is 311349097. The reversal of 311349074 is 470943113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 217356049 + 93993025 = 14743^2 + 9695^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 311349074.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77837267 + ... + 77837270.

Almost surely, 2311349074 is an apocalyptic number.

311349074 is a deficient number, since it is larger than the sum of its proper divisors (155674540).

311349074 is a wasteful number, since it uses less digits than its factorization.

311349074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155674539.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 311349074 is about 17645.0863982016. The cubic root of 311349074 is about 677.7702876197.

The spelling of 311349074 in words is "three hundred eleven million, three hundred forty-nine thousand, seventy-four".

Divisors: 1 2 155674537 311349074