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212404027 = 11193100049
BaseRepresentation
bin11001010100100…
…00011100111011
3112210200020112211
430222100130323
5413333412102
633024315551
75156255503
oct1452203473
9483606484
10212404027
11a9995320
125b172bb7
133500b174
14202d0a03
15139a97d7
hexca9073b

212404027 has 8 divisors (see below), whose sum is σ = 232916400. Its totient is φ = 192092160.

The previous prime is 212404007. The next prime is 212404079. The reversal of 212404027 is 720404212.

It is a happy number.

212404027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212404027 - 211 = 212401979 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 212403989 and 212404007.

It is not an unprimeable number, because it can be changed into a prime (212404007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47902 + ... + 52147.

It is an arithmetic number, because the mean of its divisors is an integer number (29114550).

Almost surely, 2212404027 is an apocalyptic number.

212404027 is a deficient number, since it is larger than the sum of its proper divisors (20512373).

212404027 is a wasteful number, since it uses less digits than its factorization.

212404027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100253.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 212404027 is about 14574.0875186064. The cubic root of 212404027 is about 596.6517454456.

Adding to 212404027 its reverse (720404212), we get a palindrome (932808239).

The spelling of 212404027 in words is "two hundred twelve million, four hundred four thousand, twenty-seven".

Divisors: 1 11 193 2123 100049 1100539 19309457 212404027