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12988082 = 26494041
BaseRepresentation
bin110001100010…
…111010110010
3220102212022002
4301202322302
511311104312
61142214002
7215253062
oct61427262
926385262
1012988082
117371158
124424302
1328c9973
141a213a2
1512184c2
hexc62eb2

12988082 has 4 divisors (see below), whose sum is σ = 19482126. Its totient is φ = 6494040.

The previous prime is 12988081. The next prime is 12988099. The reversal of 12988082 is 28088921.

12988082 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: 28088921 = 74012703.

It can be written as a sum of positive squares in only one way, i.e., 8404201 + 4583881 = 2899^2 + 2141^2 .

It is not an unprimeable number, because it can be changed into a prime (12988081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247019 + ... + 3247022.

Almost surely, 212988082 is an apocalyptic number.

12988082 is a deficient number, since it is larger than the sum of its proper divisors (6494044).

12988082 is an equidigital number, since it uses as much as digits as its factorization.

12988082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494043.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 12988082 is about 3603.8981672628. The cubic root of 12988082 is about 235.0615924265.

The spelling of 12988082 in words is "twelve million, nine hundred eighty-eight thousand, eighty-two".

Divisors: 1 2 6494041 12988082