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28696845 = 351913123
BaseRepresentation
bin110110101111…
…0000100001101
31222222221200010
41231132010031
524321244340
62503023433
7465630162
oct155360415
958887603
1028696845
1115220401
12973ab79
135c39aa8
143b50069
1527bcb80
hex1b5e10d

28696845 has 8 divisors (see below), whose sum is σ = 45914976. Its totient is φ = 15304976.

The previous prime is 28696841. The next prime is 28696853. The reversal of 28696845 is 54869682.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28696845 - 22 = 28696841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28696794 and 28696803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28696841) 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 7 ways as a sum of consecutive naturals, for example, 956547 + ... + 956576.

It is an arithmetic number, because the mean of its divisors is an integer number (5739372).

Almost surely, 228696845 is an apocalyptic number.

It is an amenable number.

28696845 is a deficient number, since it is larger than the sum of its proper divisors (17218131).

28696845 is a wasteful number, since it uses less digits than its factorization.

28696845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913131.

The product of its digits is 829440, while the sum is 48.

The square root of 28696845 is about 5356.9436248667. The cubic root of 28696845 is about 306.1573691806.

The spelling of 28696845 in words is "twenty-eight million, six hundred ninety-six thousand, eight hundred forty-five".

Divisors: 1 3 5 15 1913123 5739369 9565615 28696845