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211129 is a prime number
BaseRepresentation
bin110011100010111001
3101201121121
4303202321
523224004
64305241
71536352
oct634271
9351547
10211129
11134696
12a2221
1375139
1456d29
1542854
hex338b9

211129 has 2 divisors, whose sum is σ = 211130. Its totient is φ = 211128.

The previous prime is 211097. The next prime is 211151. The reversal of 211129 is 921112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189225 + 21904 = 435^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 211129 - 25 = 211097 is a prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (211199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105564 + 105565.

It is an arithmetic number, because the mean of its divisors is an integer number (105565).

2211129 is an apocalyptic number.

It is an amenable number.

211129 is a deficient number, since it is larger than the sum of its proper divisors (1).

211129 is an equidigital number, since it uses as much as digits as its factorization.

211129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 16.

The square root of 211129 is about 459.4877582700. The cubic root of 211129 is about 59.5455480625.

The spelling of 211129 in words is "two hundred eleven thousand, one hundred twenty-nine".