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26040105 = 3257136359
BaseRepresentation
bin110001101010…
…1011100101001
31210222222022100
41203111130221
523131240410
62330044013
7434223450
oct143253451
953888270
1026040105
1113776353
128879609
135519760
14365bb97
1524458c0
hex18d5729

26040105 has 48 divisors (see below), whose sum is σ = 55560960. Its totient is φ = 10986624.

The previous prime is 26040103. The next prime is 26040109. The reversal of 26040105 is 50104062.

It is a happy number.

26040105 is a `hidden beast` number, since 260 + 401 + 0 + 5 = 666.

It is not a de Polignac number, because 26040105 - 21 = 26040103 is a prime.

It is a super-2 number, since 2×260401052 = 1356174136822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26040103) 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 47 ways as a sum of consecutive naturals, for example, 916 + ... + 7274.

It is an arithmetic number, because the mean of its divisors is an integer number (1157520).

Almost surely, 226040105 is an apocalyptic number.

It is an amenable number.

26040105 is an abundant number, since it is smaller than the sum of its proper divisors (29520855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26040105 is a wasteful number, since it uses less digits than its factorization.

26040105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390 (or 6387 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 26040105 is about 5102.9506170450. The cubic root of 26040105 is about 296.4018502619.

Adding to 26040105 its reverse (50104062), we get a palindrome (76144167).

The spelling of 26040105 in words is "twenty-six million, forty thousand, one hundred five".

Divisors: 1 3 5 7 9 13 15 21 35 39 45 63 65 91 105 117 195 273 315 455 585 819 1365 4095 6359 19077 31795 44513 57231 82667 95385 133539 222565 248001 286155 400617 413335 578669 667695 744003 1240005 1736007 2003085 2893345 3720015 5208021 8680035 26040105