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26000013 = 313666667
BaseRepresentation
bin110001100101…
…1101010001101
31210220221022110
41203023222031
523124000023
62325134233
7433665534
oct143135215
953827273
1026000013
1113749216
12885a379
135504430
14364b31b
152438a93
hex18cba8d

26000013 has 8 divisors (see below), whose sum is σ = 37333408. Its totient is φ = 15999984.

The previous prime is 26000003. The next prime is 26000017. The reversal of 26000013 is 31000062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26000013 - 26 = 25999949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26000017) 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, 333295 + ... + 333372.

It is an arithmetic number, because the mean of its divisors is an integer number (4666676).

Almost surely, 226000013 is an apocalyptic number.

It is an amenable number.

26000013 is a deficient number, since it is larger than the sum of its proper divisors (11333395).

26000013 is a wasteful number, since it uses less digits than its factorization.

26000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666683.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 26000013 is about 5099.0207883475. The cubic root of 26000013 is about 296.2496562157.

Adding to 26000013 its reverse (31000062), we get a palindrome (57000075).

The spelling of 26000013 in words is "twenty-six million, thirteen", and thus it is an aban number and an uban number.

Divisors: 1 3 13 39 666667 2000001 8666671 26000013