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25030023 = 38343341
BaseRepresentation
bin101111101111…
…0110110000111
31202002122201220
41133132312013
522401430043
62252251423
7422515554
oct137366607
952078656
1025030023
1113146477
128470b73
135254a85
143477a2b
1522e6483
hex17ded87

25030023 has 4 divisors (see below), whose sum is σ = 33373368. Its totient is φ = 16686680.

The previous prime is 25030013. The next prime is 25030043. The reversal of 25030023 is 32003052.

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

It is a cyclic number.

It is not a de Polignac number, because 25030023 - 26 = 25029959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25029984 and 25030011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25030013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4171668 + ... + 4171673.

It is an arithmetic number, because the mean of its divisors is an integer number (8343342).

Almost surely, 225030023 is an apocalyptic number.

25030023 is a deficient number, since it is larger than the sum of its proper divisors (8343345).

25030023 is an equidigital number, since it uses as much as digits as its factorization.

25030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343344.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 25030023 is about 5003.0013991603. The cubic root of 25030023 is about 292.5187773759.

Adding to 25030023 its reverse (32003052), we get a palindrome (57033075).

The spelling of 25030023 in words is "twenty-five million, thirty thousand, twenty-three".

Divisors: 1 3 8343341 25030023