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10545239 = 31340169
BaseRepresentation
bin101000001110…
…100001010111
3201211202100102
4220032201113
510144421424
61014004315
7155430065
oct50164127
921752312
1010545239
115a52881
12364669b
132252ab3
141587035
15dd47ae
hexa0e857

10545239 has 4 divisors (see below), whose sum is σ = 10885440. Its totient is φ = 10205040.

The previous prime is 10545229. The next prime is 10545257. The reversal of 10545239 is 93254501.

10545239 is digitally balanced in base 3, 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10545239 is a prime.

It is a super-2 number, since 2×105452392 = 222404131134242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10545229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170054 + ... + 170115.

It is an arithmetic number, because the mean of its divisors is an integer number (2721360).

Almost surely, 210545239 is an apocalyptic number.

10545239 is a deficient number, since it is larger than the sum of its proper divisors (340201).

10545239 is an equidigital number, since it uses as much as digits as its factorization.

10545239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340200.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 10545239 is about 3247.3433757458. The cubic root of 10545239 is about 219.2899906554.

The spelling of 10545239 in words is "ten million, five hundred forty-five thousand, two hundred thirty-nine".

Divisors: 1 31 340169 10545239