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52152618 = 2374432803
BaseRepresentation
bin1100011011110…
…0100100101010
310122010121221110
43012330210222
5101322340433
65101451150
71202201310
oct306744452
9118117843
1052152618
1127491041
1215570ab6
13aa6014b
146cd80b0
1548a2963
hex31bc92a

52152618 has 32 divisors (see below), whose sum is σ = 119517696. Its totient is φ = 14861808.

The previous prime is 52152613. The next prime is 52152631. The reversal of 52152618 is 81625125.

52152618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52152613) 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 15 ways as a sum of consecutive naturals, for example, 17205 + ... + 20007.

It is an arithmetic number, because the mean of its divisors is an integer number (3734928).

Almost surely, 252152618 is an apocalyptic number.

52152618 is an abundant number, since it is smaller than the sum of its proper divisors (67365078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52152618 is a wasteful number, since it uses less digits than its factorization.

52152618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258.

The product of its digits is 4800, while the sum is 30.

The square root of 52152618 is about 7221.6769520659. The cubic root of 52152618 is about 373.6159182432.

The spelling of 52152618 in words is "fifty-two million, one hundred fifty-two thousand, six hundred eighteen".

Divisors: 1 2 3 6 7 14 21 42 443 886 1329 2658 2803 3101 5606 6202 8409 9303 16818 18606 19621 39242 58863 117726 1241729 2483458 3725187 7450374 8692103 17384206 26076309 52152618