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211349 is a prime number
BaseRepresentation
bin110011100110010101
3101201220202
4303212111
523230344
64310245
71540115
oct634625
9351822
10211349
11134876
12a2385
1375278
1457045
154294e
hex33995

211349 has 2 divisors, whose sum is σ = 211350. Its totient is φ = 211348.

The previous prime is 211339. The next prime is 211369. The reversal of 211349 is 943112.

It is an a-pointer prime, because the next prime (211369) can be obtained adding 211349 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208849 + 2500 = 457^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 211349 - 24 = 211333 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 211349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105674 + 105675.

It is an arithmetic number, because the mean of its divisors is an integer number (105675).

2211349 is an apocalyptic number.

It is an amenable number.

211349 is a deficient number, since it is larger than the sum of its proper divisors (1).

211349 is an equidigital number, since it uses as much as digits as its factorization.

211349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 211349 is about 459.7270929584. The cubic root of 211349 is about 59.5662233733.

The spelling of 211349 in words is "two hundred eleven thousand, three hundred forty-nine".