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26018 = 213009
BaseRepresentation
bin110010110100010
31022200122
412112202
51313033
6320242
7135566
oct62642
938618
1026018
1118603
1213082
13bac5
1496a6
157a98
hex65a2

26018 has 4 divisors (see below), whose sum is σ = 39030. Its totient is φ = 13008.

The previous prime is 26017. The next prime is 26021. The reversal of 26018 is 81062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81062 = 240531.

It can be written as a sum of positive squares in only one way, i.e., 24649 + 1369 = 157^2 + 37^2 .

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 25987 and 26005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26017) 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 as a sum of consecutive naturals, namely, 6503 + ... + 6506.

226018 is an apocalyptic number.

26018 is a deficient number, since it is larger than the sum of its proper divisors (13012).

26018 is a wasteful number, since it uses less digits than its factorization.

26018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13011.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 26018 is about 161.3009609395. The cubic root of 26018 is about 29.6317956364.

The spelling of 26018 in words is "twenty-six thousand, eighteen".

Divisors: 1 2 13009 26018