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52154345 = 510430869
BaseRepresentation
bin1100011011110…
…0111111101001
310122010201022102
43012330333221
5101322414340
65101503145
71202206325
oct306747751
9118121272
1052154345
1127492371
1215571ab5
13aa60b79
146cd8985
1548a3215
hex31bcfe9

52154345 has 4 divisors (see below), whose sum is σ = 62585220. Its totient is φ = 41723472.

The previous prime is 52154309. The next prime is 52154437. The reversal of 52154345 is 54345125.

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 31214569 + 20939776 = 5587^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 52154345 - 222 = 47960041 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215430 + ... + 5215439.

It is an arithmetic number, because the mean of its divisors is an integer number (15646305).

Almost surely, 252154345 is an apocalyptic number.

It is an amenable number.

52154345 is a deficient number, since it is larger than the sum of its proper divisors (10430875).

52154345 is a wasteful number, since it uses less digits than its factorization.

52154345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430874.

The product of its digits is 12000, while the sum is 29.

The square root of 52154345 is about 7221.7965216420. The cubic root of 52154345 is about 373.6200422137.

The spelling of 52154345 in words is "fifty-two million, one hundred fifty-four thousand, three hundred forty-five".

Divisors: 1 5 10430869 52154345