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68268835293 = 3220310329677
BaseRepresentation
bin111111100101001000…
…111100000111011101
320112012202212011100020
4333211020330013131
52104303310212133
651210130022353
74634523345141
oct774510740735
9215182764306
1068268835293
1126a52a8343a
12112931179b9
13658c8a8c39
143438b3b221
151b986530b3
hexfe523c1dd

68268835293 has 8 divisors (see below), whose sum is σ = 91066441248. Its totient is φ = 45491893104.

The previous prime is 68268835279. The next prime is 68268835303. The reversal of 68268835293 is 39253886286.

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

It is not a de Polignac number, because 68268835293 - 210 = 68268834269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68268837293) 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, 5158230 + ... + 5171447.

It is an arithmetic number, because the mean of its divisors is an integer number (11383305156).

Almost surely, 268268835293 is an apocalyptic number.

It is an amenable number.

68268835293 is a deficient number, since it is larger than the sum of its proper divisors (22797605955).

68268835293 is a wasteful number, since it uses less digits than its factorization.

68268835293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331883.

The product of its digits is 29859840, while the sum is 60.

The spelling of 68268835293 in words is "sixty-eight billion, two hundred sixty-eight million, eight hundred thirty-five thousand, two hundred ninety-three".

Divisors: 1 3 2203 6609 10329677 30989031 22756278431 68268835293