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25390341 = 36291201
BaseRepresentation
bin110000011011…
…0110100000101
31202202222000000
41200312310011
522444442331
62304111513
7425546214
oct140666405
952688000
1025390341
1113372159
128605599
13534ca92
14352d07b
1523680e6
hex1836d05

25390341 has 28 divisors (see below), whose sum is σ = 39413580. Its totient is φ = 16329600.

The previous prime is 25390331. The next prime is 25390361. The reversal of 25390341 is 14309352.

It can be written as a sum of positive squares in 2 ways, for example, as 4322241 + 21068100 = 2079^2 + 4590^2 .

It is not a de Polignac number, because 25390341 - 29 = 25389829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25390301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 20541 + ... + 21741.

Almost surely, 225390341 is an apocalyptic number.

It is an amenable number.

25390341 is a deficient number, since it is larger than the sum of its proper divisors (14023239).

25390341 is an equidigital number, since it uses as much as digits as its factorization.

25390341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25390341 is about 5038.8829119161. The cubic root of 25390341 is about 293.9157401185.

Adding to 25390341 its reverse (14309352), we get a palindrome (39699693).

The spelling of 25390341 in words is "twenty-five million, three hundred ninety thousand, three hundred forty-one".

Divisors: 1 3 9 27 29 81 87 243 261 729 783 1201 2349 3603 7047 10809 21141 32427 34829 97281 104487 291843 313461 875529 940383 2821149 8463447 25390341