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45304147 = 76472021
BaseRepresentation
bin1010110011010…
…0100101010011
310011020200121101
42230310211103
543044213042
64255005231
71060036030
oct254644523
9104220541
1045304147
1123633749
1213209817
139502bb5
146034387
153e9d6b7
hex2b34953

45304147 has 4 divisors (see below), whose sum is σ = 51776176. Its totient is φ = 38832120.

The previous prime is 45304111. The next prime is 45304157. The reversal of 45304147 is 74140354.

45304147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74140354 = 237070177.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45304147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45304157) 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, 3236004 + ... + 3236017.

It is an arithmetic number, because the mean of its divisors is an integer number (12944044).

Almost surely, 245304147 is an apocalyptic number.

45304147 is a deficient number, since it is larger than the sum of its proper divisors (6472029).

45304147 is an equidigital number, since it uses as much as digits as its factorization.

45304147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472028.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 45304147 is about 6730.8355350580. The cubic root of 45304147 is about 356.4888787940.

It can be divided in two parts, 45304 and 147, that added together give a triangular number (45451 = T301).

The spelling of 45304147 in words is "forty-five million, three hundred four thousand, one hundred forty-seven".

Divisors: 1 7 6472021 45304147