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68479211 = 1923156703
BaseRepresentation
bin1000001010011…
…10100011101011
311202212002211002
410011032203223
5120012313321
610443425215
71461030563
oct405164353
9152762732
1068479211
1135722499
121ab2520b
1311258558
149147da3
15602a20b
hex414e8eb

68479211 has 8 divisors (see below), whose sum is σ = 75217920. Its totient is φ = 62053992.

The previous prime is 68479207. The next prime is 68479219. The reversal of 68479211 is 11297486.

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 68479211 - 22 = 68479207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68479219) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 77915 + ... + 78788.

It is an arithmetic number, because the mean of its divisors is an integer number (9402240).

Almost surely, 268479211 is an apocalyptic number.

68479211 is a deficient number, since it is larger than the sum of its proper divisors (6738709).

68479211 is a wasteful number, since it uses less digits than its factorization.

68479211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156745.

The product of its digits is 24192, while the sum is 38.

The square root of 68479211 is about 8275.2166739004. The cubic root of 68479211 is about 409.1220774472.

The spelling of 68479211 in words is "sixty-eight million, four hundred seventy-nine thousand, two hundred eleven".

Divisors: 1 19 23 437 156703 2977357 3604169 68479211