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212444212 = 22617112263
BaseRepresentation
bin11001010100110…
…10010000110100
3112210202021200011
430222122100310
5413341203322
633025230004
75156513611
oct1452322064
9483667604
10212444212
11a9a12532
125b192304
1335023546
1420301508
15139b6677
hexca9a434

212444212 has 24 divisors (see below), whose sum is σ = 383225472. Its totient is φ = 103000800.

The previous prime is 212444179. The next prime is 212444213.

212444212 is nontrivially palindromic in base 10.

212444212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212444213) 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, 11193 + ... + 23455.

It is an arithmetic number, because the mean of its divisors is an integer number (15967728).

Almost surely, 2212444212 is an apocalyptic number.

It is an amenable number.

212444212 is a deficient number, since it is larger than the sum of its proper divisors (170781260).

212444212 is a wasteful number, since it uses less digits than its factorization.

212444212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12399 (or 12397 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 212444212 is about 14575.4660988937. The cubic root of 212444212 is about 596.6893701850.

The spelling of 212444212 in words is "two hundred twelve million, four hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 4 61 71 122 142 244 284 4331 8662 12263 17324 24526 49052 748043 870673 1496086 1741346 2992172 3482692 53111053 106222106 212444212