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53658061 = 234122921
BaseRepresentation
bin1100110010110…
…0000111001101
310201222010000121
43030230013031
5102214024221
65154024541
71221041332
oct314540715
9121863017
1053658061
112831a106
1215b78151
13b169442
1471aa989
154a9da41
hex332c1cd

53658061 has 4 divisors (see below), whose sum is σ = 53683324. Its totient is φ = 53632800.

The previous prime is 53658043. The next prime is 53658083. The reversal of 53658061 is 16085635.

53658061 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 30184036 + 23474025 = 5494^2 + 4845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53658061 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 (53658041) 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, 9120 + ... + 13801.

It is an arithmetic number, because the mean of its divisors is an integer number (13420831).

Almost surely, 253658061 is an apocalyptic number.

It is an amenable number.

53658061 is a deficient number, since it is larger than the sum of its proper divisors (25263).

53658061 is a wasteful number, since it uses less digits than its factorization.

53658061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25262.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 53658061 is about 7325.1662779762. The cubic root of 53658061 is about 377.1768173853.

The spelling of 53658061 in words is "fifty-three million, six hundred fifty-eight thousand, sixty-one".

Divisors: 1 2341 22921 53658061