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53285845 = 510657169
BaseRepresentation
bin1100101101000…
…1001111010101
310201021012102211
43023101033111
5102120121340
65142033421
71214631214
oct313211725
9121235384
1053285845
1128095498
1215a18871
13b068bb2
14711107b
154a285ea
hex32d13d5

53285845 has 4 divisors (see below), whose sum is σ = 63943020. Its totient is φ = 42628672.

The previous prime is 53285833. The next prime is 53285851. The reversal of 53285845 is 54858235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 11992369 = 6426^2 + 3463^2 .

It is a cyclic number.

It is not a de Polignac number, because 53285845 - 27 = 53285717 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 53285798 and 53285807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5328580 + ... + 5328589.

It is an arithmetic number, because the mean of its divisors is an integer number (15985755).

Almost surely, 253285845 is an apocalyptic number.

It is an amenable number.

53285845 is a deficient number, since it is larger than the sum of its proper divisors (10657175).

53285845 is a wasteful number, since it uses less digits than its factorization.

53285845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10657174.

The product of its digits is 192000, while the sum is 40.

The square root of 53285845 is about 7299.7154054114. The cubic root of 53285845 is about 376.3026577956.

The spelling of 53285845 in words is "fifty-three million, two hundred eighty-five thousand, eight hundred forty-five".

Divisors: 1 5 10657169 53285845