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68669852 = 2217167463
BaseRepresentation
bin1000001011111…
…01000110011100
311210012210022212
410011331012130
5120034413402
610451455552
71462453436
oct405750634
9153183285
1068669852
1135842749
121abb75b8
13112c4264
149197656
156066952
hex417d19c

68669852 has 6 divisors (see below), whose sum is σ = 120172248. Its totient is φ = 34334924.

The previous prime is 68669831. The next prime is 68669863. The reversal of 68669852 is 25896686.

It is a self number, because there is not a number n which added to its sum of digits gives 68669852.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8583728 + ... + 8583735.

It is an arithmetic number, because the mean of its divisors is an integer number (20028708).

Almost surely, 268669852 is an apocalyptic number.

It is an amenable number.

68669852 is a deficient number, since it is larger than the sum of its proper divisors (51502396).

68669852 is a wasteful number, since it uses less digits than its factorization.

68669852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17167467 (or 17167465 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 68669852 is about 8286.7274602222. The cubic root of 68669852 is about 409.5013807653.

The spelling of 68669852 in words is "sixty-eight million, six hundred sixty-nine thousand, eight hundred fifty-two".

Divisors: 1 2 4 17167463 34334926 68669852