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53160649 = 173127097
BaseRepresentation
bin1100101011001…
…0101011001001
310201000211200221
43022302223021
5102102120044
65135230041
71213600213
oct312625311
9121024627
1053160649
112800a423
1215978321
13b023c09
1470bb5b3
154a01484
hex32b2ac9

53160649 has 4 divisors (see below), whose sum is σ = 56287764. Its totient is φ = 50033536.

The previous prime is 53160623. The next prime is 53160677. The reversal of 53160649 is 94606135.

53160649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31136400 + 22024249 = 5580^2 + 4693^2 .

It is a cyclic number.

It is not a de Polignac number, because 53160649 - 25 = 53160617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53161649) 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 3 ways as a sum of consecutive naturals, for example, 1563532 + ... + 1563565.

It is an arithmetic number, because the mean of its divisors is an integer number (14071941).

Almost surely, 253160649 is an apocalyptic number.

It is an amenable number.

53160649 is a deficient number, since it is larger than the sum of its proper divisors (3127115).

53160649 is a wasteful number, since it uses less digits than its factorization.

53160649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127114.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 53160649 is about 7291.1349596616. The cubic root of 53160649 is about 376.0077168516.

The spelling of 53160649 in words is "fifty-three million, one hundred sixty thousand, six hundred forty-nine".

Divisors: 1 17 3127097 53160649