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30346849 = 132334373
BaseRepresentation
bin111001111000…
…0111001100001
32010002210001101
41303300321201
530232044344
63002234401
7515641531
oct163607141
963083041
1030346849
1116148045
12a1b5a01
136396b20
14405d4c1
1529e69d4
hex1cf0e61

30346849 has 4 divisors (see below), whose sum is σ = 32681236. Its totient is φ = 28012464.

The previous prime is 30346843. The next prime is 30346859. The reversal of 30346849 is 94864303.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7879249 + 22467600 = 2807^2 + 4740^2 .

It is a cyclic number.

It is not a de Polignac number, because 30346849 - 27 = 30346721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30346843) 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, 1167174 + ... + 1167199.

It is an arithmetic number, because the mean of its divisors is an integer number (8170309).

Almost surely, 230346849 is an apocalyptic number.

It is an amenable number.

30346849 is a deficient number, since it is larger than the sum of its proper divisors (2334387).

30346849 is a wasteful number, since it uses less digits than its factorization.

30346849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334386.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 30346849 is about 5508.7974186750. The cubic root of 30346849 is about 311.9161544640.

The spelling of 30346849 in words is "thirty million, three hundred forty-six thousand, eight hundred forty-nine".

Divisors: 1 13 2334373 30346849