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23315125 = 53383487
BaseRepresentation
bin101100011110…
…0001010110101
31121212112100011
41120330022311
521432041000
62151420221
7402114061
oct130741265
947775304
1023315125
1112184aa9
127984671
134aa4342
14314caa1
1520a82ba
hex163c2b5

23315125 has 16 divisors (see below), whose sum is σ = 29233152. Its totient is φ = 18565200.

The previous prime is 23315119. The next prime is 23315137. The reversal of 23315125 is 52151332.

It is not a de Polignac number, because 23315125 - 27 = 23314997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23315096 and 23315105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47632 + ... + 48118.

It is an arithmetic number, because the mean of its divisors is an integer number (1827072).

Almost surely, 223315125 is an apocalyptic number.

23315125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23315125 is a deficient number, since it is larger than the sum of its proper divisors (5918027).

23315125 is an equidigital number, since it uses as much as digits as its factorization.

23315125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 875 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 23315125 is about 4828.5738060011. The cubic root of 23315125 is about 285.6796133521.

Adding to 23315125 its reverse (52151332), we get a palindrome (75466457).

The spelling of 23315125 in words is "twenty-three million, three hundred fifteen thousand, one hundred twenty-five".

Divisors: 1 5 25 125 383 487 1915 2435 9575 12175 47875 60875 186521 932605 4663025 23315125