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68204306 = 2172006009
BaseRepresentation
bin1000001000010…
…11011100010010
311202100010201102
410010023130102
5114430014211
610433504402
71455504242
oct404133422
9152303642
1068204306
11355549a5
121aa12102
13111903a1
1490b5b22
155ec3a3b
hex410b712

68204306 has 8 divisors (see below), whose sum is σ = 108324540. Its totient is φ = 32096128.

The previous prime is 68204291. The next prime is 68204329. The reversal of 68204306 is 60340286.

It can be written as a sum of positive squares in 2 ways, for example, as 64240225 + 3964081 = 8015^2 + 1991^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002971 + ... + 1003038.

Almost surely, 268204306 is an apocalyptic number.

68204306 is a deficient number, since it is larger than the sum of its proper divisors (40120234).

68204306 is a wasteful number, since it uses less digits than its factorization.

68204306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006028.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 68204306 is about 8258.5898312000. The cubic root of 68204306 is about 408.5738792412.

The spelling of 68204306 in words is "sixty-eight million, two hundred four thousand, three hundred six".

Divisors: 1 2 17 34 2006009 4012018 34102153 68204306