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3104389 = 3798191
BaseRepresentation
bin1011110101111010000101
312211201102101
423311322011
51243320024
6150312101
735246461
oct13657205
95751371
103104389
111830412
121058631
13849022
145ab4a1
15414c44
hex2f5e85

3104389 has 4 divisors (see below), whose sum is σ = 3112960. Its totient is φ = 3095820.

The previous prime is 3104377. The next prime is 3104393. The reversal of 3104389 is 9834013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9834013 = 71404859.

It is a cyclic number.

It is not a de Polignac number, because 3104389 - 25 = 3104357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3104329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3717 + ... + 4474.

It is an arithmetic number, because the mean of its divisors is an integer number (778240).

Almost surely, 23104389 is an apocalyptic number.

It is an amenable number.

3104389 is a deficient number, since it is larger than the sum of its proper divisors (8571).

3104389 is an equidigital number, since it uses as much as digits as its factorization.

3104389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8570.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3104389 is about 1761.9276375606. The cubic root of 3104389 is about 145.8787540334.

The spelling of 3104389 in words is "three million, one hundred four thousand, three hundred eighty-nine".

Divisors: 1 379 8191 3104389