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26286081 = 38762027
BaseRepresentation
bin110010001000…
…1100000000001
31211110110201120
41210101200001
523212123311
62335222453
7436266543
oct144214001
954413646
1026286081
1113924138
128977a29
1355a46c3
1436c3693
152493706
hex1911801

26286081 has 4 divisors (see below), whose sum is σ = 35048112. Its totient is φ = 17524052.

The previous prime is 26286077. The next prime is 26286089. The reversal of 26286081 is 18068262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26286081 - 22 = 26286077 is a prime.

It is a super-2 number, since 2×262860812 = 1381916108677122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26286089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4381011 + ... + 4381016.

It is an arithmetic number, because the mean of its divisors is an integer number (8762028).

Almost surely, 226286081 is an apocalyptic number.

It is an amenable number.

26286081 is a deficient number, since it is larger than the sum of its proper divisors (8762031).

26286081 is an equidigital number, since it uses as much as digits as its factorization.

26286081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8762030.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 26286081 is about 5126.9953188978. The cubic root of 26286081 is about 297.3322020587.

The spelling of 26286081 in words is "twenty-six million, two hundred eighty-six thousand, eighty-one".

Divisors: 1 3 8762027 26286081