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52386987 = 333751817
BaseRepresentation
bin1100011111010…
…1110010101011
310122120112102210
43013311302223
5101402340422
65110500203
71204165512
oct307656253
9118515383
1052386987
1127631134
1215664663
13ab12a23
146d59679
1548ec10c
hex31f5cab

52386987 has 8 divisors (see below), whose sum is σ = 70057936. Its totient is φ = 34820352.

The previous prime is 52386977. The next prime is 52386991. The reversal of 52386987 is 78968325.

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

It is not a de Polignac number, because 52386987 - 26 = 52386923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52386967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24898 + ... + 26919.

It is an arithmetic number, because the mean of its divisors is an integer number (8757242).

Almost surely, 252386987 is an apocalyptic number.

52386987 is a deficient number, since it is larger than the sum of its proper divisors (17670949).

52386987 is a wasteful number, since it uses less digits than its factorization.

52386987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52157.

The product of its digits is 725760, while the sum is 48.

The square root of 52386987 is about 7237.8855337730. The cubic root of 52386987 is about 374.1747469966.

The spelling of 52386987 in words is "fifty-two million, three hundred eighty-six thousand, nine hundred eighty-seven".

Divisors: 1 3 337 1011 51817 155451 17462329 52386987