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67645325 = 5211245983
BaseRepresentation
bin1000000100000…
…10111110001101
311201021201221102
410002002332031
5114304122300
610413512445
71450655456
oct402027615
9151251842
1067645325
1135202a30
121a7a2725
1311025b27
148dac12d
155e130d5
hex4082f8d

67645325 has 12 divisors (see below), whose sum is σ = 91506048. Its totient is φ = 49196400.

The previous prime is 67645309. The next prime is 67645327. The reversal of 67645325 is 52354676.

It is not a de Polignac number, because 67645325 - 24 = 67645309 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67645327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122717 + ... + 123266.

It is an arithmetic number, because the mean of its divisors is an integer number (7625504).

Almost surely, 267645325 is an apocalyptic number.

It is an amenable number.

67645325 is a deficient number, since it is larger than the sum of its proper divisors (23860723).

67645325 is a wasteful number, since it uses less digits than its factorization.

67645325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246004 (or 245999 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 67645325 is about 8224.6778052395. The cubic root of 67645325 is about 407.4546350694.

The spelling of 67645325 in words is "sixty-seven million, six hundred forty-five thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 275 245983 1229915 2705813 6149575 13529065 67645325