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67866485 = 526835059
BaseRepresentation
bin1000000101110…
…00111101110101
311201200222022112
410002320331311
5114333211420
610422340405
71452566321
oct402707565
9151628275
1067866485
1135344105
121a88a705
13110a26ab
149028981
155e588c5
hex40b8f75

67866485 has 8 divisors (see below), whose sum is σ = 81486240. Its totient is φ = 54262224.

The previous prime is 67866481. The next prime is 67866503. The reversal of 67866485 is 58466876.

It is a happy number.

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 67866485 - 22 = 67866481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67866481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10886 + ... + 15944.

It is an arithmetic number, because the mean of its divisors is an integer number (10185780).

Almost surely, 267866485 is an apocalyptic number.

It is an amenable number.

67866485 is a deficient number, since it is larger than the sum of its proper divisors (13619755).

67866485 is a wasteful number, since it uses less digits than its factorization.

67866485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747.

The product of its digits is 1935360, while the sum is 50.

The square root of 67866485 is about 8238.1117375282. Note that the first 3 decimals coincide. The cubic root of 67866485 is about 407.8981968387.

The spelling of 67866485 in words is "sixty-seven million, eight hundred sixty-six thousand, four hundred eighty-five".

Divisors: 1 5 2683 5059 13415 25295 13573297 67866485