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211374 = 23211743
BaseRepresentation
bin110011100110101110
3101201221200
4303212232
523230444
64310330
71540152
oct634656
9351850
10211374
11134899
12a23a6
1375297
1457062
1542969
hex339ae

211374 has 12 divisors (see below), whose sum is σ = 458016. Its totient is φ = 70452.

The previous prime is 211373. The next prime is 211403. The reversal of 211374 is 473112.

211374 is digitally balanced in base 3, 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 (18), and also a Moran number because the ratio is a prime number: 11743 = 211374 / (2 + 1 + 1 + 3 + 7 + 4).

It is a Curzon number.

It is a plaindrome in base 11 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5854 + ... + 5889.

It is an arithmetic number, because the mean of its divisors is an integer number (38168).

2211374 is an apocalyptic number.

211374 is an abundant number, since it is smaller than the sum of its proper divisors (246642).

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

211374 is a wasteful number, since it uses less digits than its factorization.

211374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11751 (or 11748 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 211374 is about 459.7542821987. The cubic root of 211374 is about 59.5685719324.

Adding to 211374 its reverse (473112), we get a palindrome (684486).

It can be divided in two parts, 21137 and 4, that multiplied together give a palindrome (84548).

The spelling of 211374 in words is "two hundred eleven thousand, three hundred seventy-four", and thus it is an iban number.

Divisors: 1 2 3 6 9 18 11743 23486 35229 70458 105687 211374