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67396967 = 1133718181
BaseRepresentation
bin1000000010001…
…10010101100111
311200211010020222
410001012111213
5114223200332
610404314555
71445602421
oct401062547
9150733228
1067396967
1135053380
121a6a2a5b
1310c69a81
148d45811
155db4712
hex4046567

67396967 has 8 divisors (see below), whose sum is σ = 73746192. Its totient is φ = 61084800.

The previous prime is 67396961. The next prime is 67396991. The reversal of 67396967 is 76969376.

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

It is a cyclic number.

It is not a de Polignac number, because 67396967 - 210 = 67395943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67396961) 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 7 ways as a sum of consecutive naturals, for example, 5384 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (9218274).

Almost surely, 267396967 is an apocalyptic number.

67396967 is a deficient number, since it is larger than the sum of its proper divisors (6349225).

67396967 is a wasteful number, since it uses less digits than its factorization.

67396967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18529.

The product of its digits is 2571912, while the sum is 53.

The square root of 67396967 is about 8209.5655792496. The cubic root of 67396967 is about 406.9553706293.

The spelling of 67396967 in words is "sixty-seven million, three hundred ninety-six thousand, nine hundred sixty-seven".

Divisors: 1 11 337 3707 18181 199991 6126997 67396967