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25436230 = 252543623
BaseRepresentation
bin110000100001…
…0000001000110
31202212021221121
41201002001012
523002424410
62305104154
7426130051
oct141020106
952767847
1025436230
11133a3686
12862805a
135367931
143541a98
1523769da
hex1842046

25436230 has 8 divisors (see below), whose sum is σ = 45785232. Its totient is φ = 10174488.

The previous prime is 25436221. The next prime is 25436239. The reversal of 25436230 is 3263452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25436221) and next prime (25436239).

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

It is a super-2 number, since 2×254362302 = 1294003593225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25436195 and 25436204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25436239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271802 + ... + 1271821.

It is an arithmetic number, because the mean of its divisors is an integer number (5723154).

Almost surely, 225436230 is an apocalyptic number.

25436230 is a deficient number, since it is larger than the sum of its proper divisors (20349002).

25436230 is a wasteful number, since it uses less digits than its factorization.

25436230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543630.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 25436230 is about 5043.4343457608. The cubic root of 25436230 is about 294.0927021903.

Adding to 25436230 its reverse (3263452), we get a palindrome (28699682).

The spelling of 25436230 in words is "twenty-five million, four hundred thirty-six thousand, two hundred thirty".

Divisors: 1 2 5 10 2543623 5087246 12718115 25436230