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65242033 = 313208441
BaseRepresentation
bin1111100011100…
…0001110110001
311112202122020121
43320320032301
5113200221113
610250210241
71421356003
oct370701661
9145678217
1065242033
113391133a
1219a23981
1310693c6c
148944373
155adae8d
hex3e383b1

65242033 has 4 divisors (see below), whose sum is σ = 65450788. Its totient is φ = 65033280.

The previous prime is 65242031. The next prime is 65242043. The reversal of 65242033 is 33024256.

It is a happy number.

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 10969344 + 54272689 = 3312^2 + 7367^2 .

It is a cyclic number.

It is not a de Polignac number, because 65242033 - 21 = 65242031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65241989 and 65242007.

It is not an unprimeable number, because it can be changed into a prime (65242031) 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, 103908 + ... + 104533.

It is an arithmetic number, because the mean of its divisors is an integer number (16362697).

Almost surely, 265242033 is an apocalyptic number.

It is an amenable number.

65242033 is a deficient number, since it is larger than the sum of its proper divisors (208755).

65242033 is a wasteful number, since it uses less digits than its factorization.

65242033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208754.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 65242033 is about 8077.2540507279. The cubic root of 65242033 is about 402.5710081375.

Adding to 65242033 its reverse (33024256), we get a palindrome (98266289).

The spelling of 65242033 in words is "sixty-five million, two hundred forty-two thousand, thirty-three".

Divisors: 1 313 208441 65242033