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211444212 = 22372359599
BaseRepresentation
bin11001001101001…
…10000111110100
3112201212110221010
430212212013310
5413112203322
632551552220
75145150300
oct1446460764
9481773833
10211444212
11a939a191
125a98b670
1334a63325
1420120d00
151386a20c
hexc9a61f4

211444212 has 36 divisors (see below), whose sum is σ = 573921600. Its totient is φ = 60412464.

The previous prime is 211444183. The next prime is 211444223. The reversal of 211444212 is 212444112.

211444212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179212 + ... + 180387.

Almost surely, 2211444212 is an apocalyptic number.

It is an amenable number.

211444212 is an abundant number, since it is smaller than the sum of its proper divisors (362477388).

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

211444212 is a wasteful number, since it uses less digits than its factorization.

211444212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359620 (or 359611 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 211444212 is about 14541.1214148015. The cubic root of 211444212 is about 595.7516682354.

Adding to 211444212 its reverse (212444112), we get a palindrome (423888324).

The spelling of 211444212 in words is "two hundred eleven million, four hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 359599 719198 1078797 1438396 2157594 2517193 4315188 5034386 7551579 10068772 15103158 17620351 30206316 35240702 52861053 70481404 105722106 211444212