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28848245 = 55769649
BaseRepresentation
bin110111000001…
…1000001110101
32000021122100112
41232003001311
524341120440
62510152405
7500130446
oct156030165
960248315
1028848245
1115314128
1297b2705
135c9098a
143b8d2cd
1527ec965
hex1b83075

28848245 has 4 divisors (see below), whose sum is σ = 34617900. Its totient is φ = 23078592.

The previous prime is 28848217. The next prime is 28848247. The reversal of 28848245 is 54284882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54284882 = 227142441.

It can be written as a sum of positive squares in 2 ways, for example, as 11600836 + 17247409 = 3406^2 + 4153^2 .

It is a cyclic number.

It is not a de Polignac number, because 28848245 - 218 = 28586101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28848247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2884820 + ... + 2884829.

It is an arithmetic number, because the mean of its divisors is an integer number (8654475).

Almost surely, 228848245 is an apocalyptic number.

It is an amenable number.

28848245 is a deficient number, since it is larger than the sum of its proper divisors (5769655).

28848245 is an equidigital number, since it uses as much as digits as its factorization.

28848245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769654.

The product of its digits is 163840, while the sum is 41.

The square root of 28848245 is about 5371.0562275962. The cubic root of 28848245 is about 306.6948376505.

The spelling of 28848245 in words is "twenty-eight million, eight hundred forty-eight thousand, two hundred forty-five".

Divisors: 1 5 5769649 28848245