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26328061 = 221311897
BaseRepresentation
bin110010001101…
…1101111111101
31211112121022101
41210123233331
523214444221
62340145101
7436533124
oct144335775
954477271
1026328061
1113952731
128998191
1355ba846
1436d4abb
1524a0d91
hex191bbfd

26328061 has 4 divisors (see below), whose sum is σ = 26342172. Its totient is φ = 26313952.

The previous prime is 26328041. The next prime is 26328097. The reversal of 26328061 is 16082362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16082362 = 28041181.

It can be written as a sum of positive squares in 2 ways, for example, as 26163225 + 164836 = 5115^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 26328061 - 215 = 26295293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26328011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3736 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (6585543).

Almost surely, 226328061 is an apocalyptic number.

It is an amenable number.

26328061 is a deficient number, since it is larger than the sum of its proper divisors (14111).

26328061 is a wasteful number, since it uses less digits than its factorization.

26328061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14110.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 26328061 is about 5131.0877014528. The cubic root of 26328061 is about 297.4904019689.

The spelling of 26328061 in words is "twenty-six million, three hundred twenty-eight thousand, sixty-one".

Divisors: 1 2213 11897 26328061