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28694341 = 132169789
BaseRepresentation
bin110110101110…
…1011101000101
31222222211020101
41231131131011
524321204331
62503004101
7465616654
oct155353505
958884211
1028694341
1115219535
129739631
135c38900
143b4d19b
1527bc061
hex1b5d745

28694341 has 6 divisors (see below), whose sum is σ = 31071570. Its totient is φ = 26486928.

The previous prime is 28694333. The next prime is 28694353. The reversal of 28694341 is 14349682.

It can be written as a sum of positive squares in 3 ways, for example, as 125316 + 28569025 = 354^2 + 5345^2 .

It is not a de Polignac number, because 28694341 - 23 = 28694333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28694341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28694381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84726 + ... + 85063.

It is an arithmetic number, because the mean of its divisors is an integer number (5178595).

Almost surely, 228694341 is an apocalyptic number.

It is an amenable number.

28694341 is a deficient number, since it is larger than the sum of its proper divisors (2377229).

28694341 is a wasteful number, since it uses less digits than its factorization.

28694341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169815 (or 169802 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 28694341 is about 5356.7099044096. The cubic root of 28694341 is about 306.1484641325.

The spelling of 28694341 in words is "twenty-eight million, six hundred ninety-four thousand, three hundred forty-one".

Divisors: 1 13 169 169789 2207257 28694341