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65050865 = 5113138153
BaseRepresentation
bin1111100000100…
…1100011110001
311112101221000022
43320021203301
5113123111430
610242133225
71416631445
oct370114361
9145357008
1065050865
11337a0750
1219951215
1310627c49
1488d4825
155a9e4e5
hex3e098f1

65050865 has 16 divisors (see below), whose sum is σ = 87906816. Its totient is φ = 45782400.

The previous prime is 65050859. The next prime is 65050883. The reversal of 65050865 is 56805056.

65050865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65050865 - 214 = 65034481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 17372 + ... + 20781.

It is an arithmetic number, because the mean of its divisors is an integer number (5494176).

Almost surely, 265050865 is an apocalyptic number.

It is an amenable number.

65050865 is a deficient number, since it is larger than the sum of its proper divisors (22855951).

65050865 is a wasteful number, since it uses less digits than its factorization.

65050865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38200.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 65050865 is about 8065.4116447953. The cubic root of 65050865 is about 402.1774275985.

It can be divided in two parts, 650 and 50865, that added together give a palindrome (51515).

The spelling of 65050865 in words is "sixty-five million, fifty thousand, eight hundred sixty-five".

Divisors: 1 5 11 31 55 155 341 1705 38153 190765 419683 1182743 2098415 5913715 13010173 65050865