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212443036 = 22134878389
BaseRepresentation
bin11001010100110…
…01111110011100
3112210202020001121
430222121332130
5413341134121
633025220324
75156510311
oct1452317634
9483666047
10212443036
11a9a11663
125b1916a4
1335022b50
1420300d08
15139b6141
hexca99f9c

212443036 has 24 divisors (see below), whose sum is σ = 401243360. Its totient is φ = 97837632.

The previous prime is 212443001. The next prime is 212443057. The reversal of 212443036 is 630344212.

212443036 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212443036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21130 + ... + 29518.

Almost surely, 2212443036 is an apocalyptic number.

212443036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

212443036 is a deficient number, since it is larger than the sum of its proper divisors (188800324).

212443036 is a wasteful number, since it uses less digits than its factorization.

212443036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8893 (or 8891 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 212443036 is about 14575.4257570748. The cubic root of 212443036 is about 596.6882691775.

Adding to 212443036 its reverse (630344212), we get a palindrome (842787248).

The spelling of 212443036 in words is "two hundred twelve million, four hundred forty-three thousand, thirty-six".

Divisors: 1 2 4 13 26 52 487 974 1948 6331 8389 12662 16778 25324 33556 109057 218114 436228 4085443 8170886 16341772 53110759 106221518 212443036