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211347052 = 22742117929
BaseRepresentation
bin11001001100011…
…10011001101100
3112201200112122121
430212032121230
5413101101202
632545522324
75144264110
oct1446163154
9481615577
10211347052
11a9333194
125a9433a4
1334a2b037
14200d7740
151384b537
hexc98e66c

211347052 has 24 divisors (see below), whose sum is σ = 423721760. Its totient is φ = 90357120.

The previous prime is 211347047. The next prime is 211347061. The reversal of 211347052 is 250743112.

It is a happy number.

211347052 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 7 ways as a sum of consecutive naturals, for example, 2824 + ... + 20752.

Almost surely, 2211347052 is an apocalyptic number.

It is an amenable number.

211347052 is an abundant number, since it is smaller than the sum of its proper divisors (212374708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211347052 is a wasteful number, since it uses less digits than its factorization.

211347052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18361 (or 18359 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 211347052 is about 14537.7801606710. The cubic root of 211347052 is about 595.6604036575.

The spelling of 211347052 in words is "two hundred eleven million, three hundred forty-seven thousand, fifty-two".

Divisors: 1 2 4 7 14 28 421 842 1684 2947 5894 11788 17929 35858 71716 125503 251006 502012 7548109 15096218 30192436 52836763 105673526 211347052