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65088057 = 321696019
BaseRepresentation
bin1111100001001…
…0101000111001
311112110211000210
43320102220321
5113130304212
610243021333
71420145046
oct370225071
9145424023
1065088057
1133816691
121996a849
131063bb58
1489041cd
155aaa53c
hex3e12a39

65088057 has 4 divisors (see below), whose sum is σ = 86784080. Its totient is φ = 43392036.

The previous prime is 65088031. The next prime is 65088071. The reversal of 65088057 is 75088056.

It is a happy number.

65088057 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65088057 - 27 = 65087929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65088007) 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, 10848007 + ... + 10848012.

It is an arithmetic number, because the mean of its divisors is an integer number (21696020).

Almost surely, 265088057 is an apocalyptic number.

It is an amenable number.

65088057 is a deficient number, since it is larger than the sum of its proper divisors (21696023).

65088057 is a wasteful number, since it uses less digits than its factorization.

65088057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21696022.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 65088057 is about 8067.7169633050. The cubic root of 65088057 is about 402.2540595959.

Subtracting 65088057 from its reverse (75088056), we obtain a palindrome (9999999).

The spelling of 65088057 in words is "sixty-five million, eighty-eight thousand, fifty-seven".

Divisors: 1 3 21696019 65088057