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28041358 = 222362873
BaseRepresentation
bin110101011111…
…0000010001110
31221202122111211
41222332002032
524134310413
62441005034
7460230142
oct152760216
957678454
1028041358
1114912984
12948377a
135a6a627
143a1d222
1526dd83d
hex1abe08e

28041358 has 8 divisors (see below), whose sum is σ = 42251328. Its totient is φ = 13957584.

The previous prime is 28041331. The next prime is 28041371. The reversal of 28041358 is 85314082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 30991 + ... + 31882.

It is an arithmetic number, because the mean of its divisors is an integer number (5281416).

Almost surely, 228041358 is an apocalyptic number.

28041358 is a deficient number, since it is larger than the sum of its proper divisors (14209970).

28041358 is a wasteful number, since it uses less digits than its factorization.

28041358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63098.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28041358 is about 5295.4091437773. The cubic root of 28041358 is about 303.8083322633.

The spelling of 28041358 in words is "twenty-eight million, forty-one thousand, three hundred fifty-eight".

Divisors: 1 2 223 446 62873 125746 14020679 28041358