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52387597 = 371415881
BaseRepresentation
bin1100011111010…
…1111100001101
310122120120021101
43013311330031
5101402400342
65110503101
71204200343
oct307657415
9118516241
1052387597
1127631639
1215664a91
13ab130a2
146d59993
1548ec3b7
hex31f5f0d

52387597 has 4 divisors (see below), whose sum is σ = 53803516. Its totient is φ = 50971680.

The previous prime is 52387549. The next prime is 52387633. The reversal of 52387597 is 79578325.

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 42237001 + 10150596 = 6499^2 + 3186^2 .

It is a cyclic number.

It is not a de Polignac number, because 52387597 - 215 = 52354829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52387547) 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, 707904 + ... + 707977.

It is an arithmetic number, because the mean of its divisors is an integer number (13450879).

Almost surely, 252387597 is an apocalyptic number.

It is an amenable number.

52387597 is a deficient number, since it is larger than the sum of its proper divisors (1415919).

52387597 is a wasteful number, since it uses less digits than its factorization.

52387597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415918.

The product of its digits is 529200, while the sum is 46.

The square root of 52387597 is about 7237.9276730291. The cubic root of 52387597 is about 374.1761993020.

The spelling of 52387597 in words is "fifty-two million, three hundred eighty-seven thousand, five hundred ninety-seven".

Divisors: 1 37 1415881 52387597