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3311393 = 17319141
BaseRepresentation
bin1100101000011100100001
320020020101012
430220130201
51321431033
6154550305
740101131
oct14503441
96206335
103311393
111961998
121138395
138bc307
14622ac1
15456248
hex328721

3311393 has 4 divisors (see below), whose sum is σ = 3330708. Its totient is φ = 3292080.

The previous prime is 3311359. The next prime is 3311401. The reversal of 3311393 is 3931133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3931133 = 19492017.

It can be written as a sum of positive squares in 2 ways, for example, as 2486929 + 824464 = 1577^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 3311393 - 28 = 3311137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3311303) 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, 9398 + ... + 9743.

It is an arithmetic number, because the mean of its divisors is an integer number (832677).

Almost surely, 23311393 is an apocalyptic number.

It is an amenable number.

3311393 is a deficient number, since it is larger than the sum of its proper divisors (19315).

3311393 is a wasteful number, since it uses less digits than its factorization.

3311393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19314.

The product of its digits is 729, while the sum is 23.

The square root of 3311393 is about 1819.7233306192. The cubic root of 3311393 is about 149.0516914475.

The spelling of 3311393 in words is "three million, three hundred eleven thousand, three hundred ninety-three".

Divisors: 1 173 19141 3311393