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65034040 = 2351625851
BaseRepresentation
bin1111100000010…
…1011100111000
311112101001221011
43320011130320
5113122042130
610241523304
71416531421
oct370053470
9145331834
1065034040
113378a045
1219943534
13106203a6
1488cc648
155a9952a
hex3e05738

65034040 has 16 divisors (see below), whose sum is σ = 146326680. Its totient is φ = 26013600.

The previous prime is 65034023. The next prime is 65034043. The reversal of 65034040 is 4043056.

65034040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65034043) 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, 812886 + ... + 812965.

Almost surely, 265034040 is an apocalyptic number.

It is an amenable number.

65034040 is an abundant number, since it is smaller than the sum of its proper divisors (81292640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65034040 is a wasteful number, since it uses less digits than its factorization.

65034040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625862 (or 1625858 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 65034040 is about 8064.3685431657. The cubic root of 65034040 is about 402.1427510486.

Adding to 65034040 its reverse (4043056), we get a palindrome (69077096).

The spelling of 65034040 in words is "sixty-five million, thirty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 1625851 3251702 6503404 8129255 13006808 16258510 32517020 65034040