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26081390 = 252608139
BaseRepresentation
bin110001101111…
…1100001101110
31211002001221102
41203133201232
523134101030
62331003102
7434455016
oct143374156
954061842
1026081390
11137a4375
128899492
13553249a
14366cc46
152452c45
hex18df86e

26081390 has 8 divisors (see below), whose sum is σ = 46946520. Its totient is φ = 10432552.

The previous prime is 26081389. The next prime is 26081399. The reversal of 26081390 is 9318062.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26081399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304060 + ... + 1304079.

It is an arithmetic number, because the mean of its divisors is an integer number (5868315).

Almost surely, 226081390 is an apocalyptic number.

26081390 is a deficient number, since it is larger than the sum of its proper divisors (20865130).

26081390 is a wasteful number, since it uses less digits than its factorization.

26081390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608146.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 26081390 is about 5106.9942236114. The cubic root of 26081390 is about 296.5584099109.

The spelling of 26081390 in words is "twenty-six million, eighty-one thousand, three hundred ninety".

Divisors: 1 2 5 10 2608139 5216278 13040695 26081390