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12635023 = 79159937
BaseRepresentation
bin110000001100…
…101110001111
3212202220222211
4300030232033
511213310043
61130451251
7212252542
oct60145617
925686884
1012635023
11714a975
124293b27
13280505b
14196c859
151198a9d
hexc0cb8f

12635023 has 4 divisors (see below), whose sum is σ = 12795040. Its totient is φ = 12475008.

The previous prime is 12635009. The next prime is 12635033. The reversal of 12635023 is 32053621.

12635023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32053621 = 160120021.

It is a cyclic number.

It is not a de Polignac number, because 12635023 - 221 = 10537871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12634985 and 12635003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12635003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79890 + ... + 80047.

It is an arithmetic number, because the mean of its divisors is an integer number (3198760).

Almost surely, 212635023 is an apocalyptic number.

12635023 is a deficient number, since it is larger than the sum of its proper divisors (160017).

12635023 is an equidigital number, since it uses as much as digits as its factorization.

12635023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160016.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 12635023 is about 3554.5777527014. The cubic root of 12635023 is about 232.9120791650.

Adding to 12635023 its reverse (32053621), we get a palindrome (44688644).

The spelling of 12635023 in words is "twelve million, six hundred thirty-five thousand, twenty-three".

Divisors: 1 79 159937 12635023