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65242465 = 5101129193
BaseRepresentation
bin1111100011100…
…0010101100001
311112202122211121
43320320111201
5113200224330
610250212241
71421360161
oct370702541
9145678747
1065242465
11339116a2
1219a24081
1310694212
1489445a1
155adb17a
hex3e38561

65242465 has 8 divisors (see below), whose sum is σ = 79066728. Its totient is φ = 51676800.

The previous prime is 65242451. The next prime is 65242469. The reversal of 65242465 is 56424256.

65242465 = 57112 + 57122.

65242465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 19963024 + 45279441 = 4468^2 + 6729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65242465 - 27 = 65242337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65242465.

It is not an unprimeable number, because it can be changed into a prime (65242469) 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 7 ways as a sum of consecutive naturals, for example, 64092 + ... + 65101.

It is an arithmetic number, because the mean of its divisors is an integer number (9883341).

Almost surely, 265242465 is an apocalyptic number.

65242465 is the 5712-nd centered square number.

It is an amenable number.

65242465 is a deficient number, since it is larger than the sum of its proper divisors (13824263).

65242465 is a wasteful number, since it uses less digits than its factorization.

65242465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129299.

The product of its digits is 57600, while the sum is 34.

The square root of 65242465 is about 8077.2807924449. The cubic root of 65242465 is about 402.5718966766.

The spelling of 65242465 in words is "sixty-five million, two hundred forty-two thousand, four hundred sixty-five".

Divisors: 1 5 101 505 129193 645965 13048493 65242465