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27968341 = 34618081
BaseRepresentation
bin110101010110…
…0001101010101
31221121221100111
41222230031111
524124441331
62435243021
7456504232
oct152541525
957557314
1027968341
1114873035
129449471
135a4331b
143a00789
1526c6db1
hex1aac355

27968341 has 4 divisors (see below), whose sum is σ = 27979884. Its totient is φ = 27956800.

The previous prime is 27968333. The next prime is 27968351. The reversal of 27968341 is 14386972.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7447441 + 20520900 = 2729^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 27968341 - 23 = 27968333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27968294 and 27968303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27968351) 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 3 ways as a sum of consecutive naturals, for example, 580 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (6994971).

Almost surely, 227968341 is an apocalyptic number.

It is an amenable number.

27968341 is a deficient number, since it is larger than the sum of its proper divisors (11543).

27968341 is an equidigital number, since it uses as much as digits as its factorization.

27968341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11542.

The product of its digits is 72576, while the sum is 40.

The square root of 27968341 is about 5288.5102817334. The cubic root of 27968341 is about 303.5444071569.

The spelling of 27968341 in words is "twenty-seven million, nine hundred sixty-eight thousand, three hundred forty-one".

Divisors: 1 3461 8081 27968341