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20632325 = 527117899
BaseRepresentation
bin100111010110…
…1001100000101
31102211020020012
41032231030011
520240213300
62014120005
7340241360
oct116551405
942736205
1020632325
111071240a
126ab0005
13437519c
142a510d7
151c28435
hex13ad305

20632325 has 12 divisors (see below), whose sum is σ = 29239200. Its totient is φ = 14147760.

The previous prime is 20632301. The next prime is 20632327. The reversal of 20632325 is 52323602.

It is a happy number.

It is not a de Polignac number, because 20632325 - 214 = 20615941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20632325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20632327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58775 + ... + 59124.

It is an arithmetic number, because the mean of its divisors is an integer number (2436600).

Almost surely, 220632325 is an apocalyptic number.

20632325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20632325 is a deficient number, since it is larger than the sum of its proper divisors (8606875).

20632325 is a wasteful number, since it uses less digits than its factorization.

20632325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117916 (or 117911 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20632325 is about 4542.2819155134. The cubic root of 20632325 is about 274.2727894016.

Adding to 20632325 its reverse (52323602), we get a palindrome (72955927).

The spelling of 20632325 in words is "twenty million, six hundred thirty-two thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 175 117899 589495 825293 2947475 4126465 20632325