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212055212 = 22173118459
BaseRepresentation
bin11001010001110…
…11010010101100
3112210000112001202
430220323102230
5413241231322
633013025032
75153303525
oct1450732254
9483015052
10212055212
11a9777246
125b025178
1334c18475
142023d84c
151393b292
hexca3b4ac

212055212 has 12 divisors (see below), whose sum is σ = 392925960. Its totient is φ = 99790656.

The previous prime is 212055209. The next prime is 212055241. The reversal of 212055212 is 212550212.

It is a happy number.

212055212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559162 + ... + 1559297.

It is an arithmetic number, because the mean of its divisors is an integer number (32743830).

Almost surely, 2212055212 is an apocalyptic number.

It is an amenable number.

212055212 is a deficient number, since it is larger than the sum of its proper divisors (180870748).

212055212 is a wasteful number, since it uses less digits than its factorization.

212055212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118480 (or 3118478 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 212055212 is about 14562.1156429964. The cubic root of 212055212 is about 596.3249545450.

The spelling of 212055212 in words is "two hundred twelve million, fifty-five thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 3118459 6236918 12473836 53013803 106027606 212055212