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25324229 = 72516821
BaseRepresentation
bin110000010011…
…0101011000101
31202122121022102
41200212223011
522440333404
62302441445
7425152400
oct140465305
952577272
1025324229
1113327517
128593285
135328968
143512d37
15235371e
hex1826ac5

25324229 has 6 divisors (see below), whose sum is σ = 29458854. Its totient is φ = 21706440.

The previous prime is 25324223. The next prime is 25324249. The reversal of 25324229 is 92242352.

It can be written as a sum of positive squares in only one way, i.e., 23059204 + 2265025 = 4802^2 + 1505^2 .

It is not a de Polignac number, because 25324229 - 28 = 25323973 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 (25324223) 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 5 ways as a sum of consecutive naturals, for example, 258362 + ... + 258459.

It is an arithmetic number, because the mean of its divisors is an integer number (4909809).

Almost surely, 225324229 is an apocalyptic number.

It is an amenable number.

25324229 is a deficient number, since it is larger than the sum of its proper divisors (4134625).

25324229 is an equidigital number, since it uses as much as digits as its factorization.

25324229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516835 (or 516828 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 25324229 is about 5032.3184517675. The cubic root of 25324229 is about 293.6604166849.

The spelling of 25324229 in words is "twenty-five million, three hundred twenty-four thousand, two hundred twenty-nine".

Divisors: 1 7 49 516821 3617747 25324229