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67385055 = 3523195319
BaseRepresentation
bin1000000010000…
…11011011011111
311200210111220210
410001003123133
5114222310210
610404143503
71445522613
oct401033337
9150714823
1067385055
1135045431
121a697b93
1310c6451a
148d41343
155db0e20
hex40436df

67385055 has 16 divisors (see below), whose sum is σ = 112504320. Its totient is φ = 34375968.

The previous prime is 67385051. The next prime is 67385081. The reversal of 67385055 is 55058376.

It is not a de Polignac number, because 67385055 - 22 = 67385051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67385051) 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 15 ways as a sum of consecutive naturals, for example, 97315 + ... + 98004.

It is an arithmetic number, because the mean of its divisors is an integer number (7031520).

Almost surely, 267385055 is an apocalyptic number.

67385055 is a deficient number, since it is larger than the sum of its proper divisors (45119265).

67385055 is a wasteful number, since it uses less digits than its factorization.

67385055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195350.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 67385055 is about 8208.8400520415. The cubic root of 67385055 is about 406.9313935958.

The spelling of 67385055 in words is "sixty-seven million, three hundred eighty-five thousand, fifty-five".

Divisors: 1 3 5 15 23 69 115 345 195319 585957 976595 2929785 4492337 13477011 22461685 67385055