Search a number
-
+
53385061 = 149358289
BaseRepresentation
bin1100101110100…
…1011101100101
310201110020112111
43023221131211
5102131310221
65144121021
71215523402
oct313513545
9121406474
1053385061
1128152a94
1215a66171
13b0a20c2
1471392a9
154a47be1
hex32e9765

53385061 has 4 divisors (see below), whose sum is σ = 53743500. Its totient is φ = 53026624.

The previous prime is 53385037. The next prime is 53385067. The reversal of 53385061 is 16058335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16058335 = 53211667.

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 49702500 = 1919^2 + 7050^2 .

It is a cyclic number.

It is not a de Polignac number, because 53385061 - 29 = 53384549 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 (53385067) 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, 178996 + ... + 179293.

It is an arithmetic number, because the mean of its divisors is an integer number (13435875).

Almost surely, 253385061 is an apocalyptic number.

It is an amenable number.

53385061 is a deficient number, since it is larger than the sum of its proper divisors (358439).

53385061 is a wasteful number, since it uses less digits than its factorization.

53385061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358438.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 53385061 is about 7306.5081263214. The cubic root of 53385061 is about 376.5360662252.

The spelling of 53385061 in words is "fifty-three million, three hundred eighty-five thousand, sixty-one".

Divisors: 1 149 358289 53385061