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52815957 = 3171035607
BaseRepresentation
bin1100100101111…
…0100001010101
310200101022212120
43021132201111
5102010102312
65124010153
71210633245
oct311364125
9120338776
1052815957
11278a4457
1215830959
13ac3305c
14702bb25
15498428c
hex325e855

52815957 has 8 divisors (see below), whose sum is σ = 74563776. Its totient is φ = 33139392.

The previous prime is 52815943. The next prime is 52815967. The reversal of 52815957 is 75951825.

52815957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52815957 - 28 = 52815701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52815907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517753 + ... + 517854.

It is an arithmetic number, because the mean of its divisors is an integer number (9320472).

Almost surely, 252815957 is an apocalyptic number.

It is an amenable number.

52815957 is a deficient number, since it is larger than the sum of its proper divisors (21747819).

52815957 is a wasteful number, since it uses less digits than its factorization.

52815957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035627.

The product of its digits is 126000, while the sum is 42.

The square root of 52815957 is about 7267.4587718129. The cubic root of 52815957 is about 375.1932799194.

The spelling of 52815957 in words is "fifty-two million, eight hundred fifteen thousand, nine hundred fifty-seven".

Divisors: 1 3 17 51 1035607 3106821 17605319 52815957