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25344023 = 67378269
BaseRepresentation
bin110000010101…
…1100000010111
31202200121110112
41200223200113
522442002043
62303113235
7425264165
oct140534027
952617415
1025344023
1113340381
1285a281b
135334983
14351a235
152359518
hex182b817

25344023 has 4 divisors (see below), whose sum is σ = 25722360. Its totient is φ = 24965688.

The previous prime is 25344013. The next prime is 25344029. The reversal of 25344023 is 32044352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25344023 is a prime.

It is a super-4 number, since 4×253440234 (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25344023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25344029) 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 3 ways as a sum of consecutive naturals, for example, 189068 + ... + 189201.

It is an arithmetic number, because the mean of its divisors is an integer number (6430590).

Almost surely, 225344023 is an apocalyptic number.

25344023 is a deficient number, since it is larger than the sum of its proper divisors (378337).

25344023 is an equidigital number, since it uses as much as digits as its factorization.

25344023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378336.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 25344023 is about 5034.2847555537. The cubic root of 25344023 is about 293.7369073386.

Adding to 25344023 its reverse (32044352), we get a palindrome (57388375).

The spelling of 25344023 in words is "twenty-five million, three hundred forty-four thousand, twenty-three".

Divisors: 1 67 378269 25344023