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212532343 = 823258241
BaseRepresentation
bin11001010101011…
…11110001110111
3112210220202120021
430222233301313
5413402013333
633031150011
75160331552
oct1452576167
9483822507
10212532343
11a9a72771
125b215307
13350546aa
1420325699
15139d282d
hexcaafc77

212532343 has 4 divisors (see below), whose sum is σ = 212791408. Its totient is φ = 212273280.

The previous prime is 212532301. The next prime is 212532361. The reversal of 212532343 is 343235212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212532343 - 29 = 212531831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212532143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128298 + ... + 129943.

It is an arithmetic number, because the mean of its divisors is an integer number (53197852).

Almost surely, 2212532343 is an apocalyptic number.

212532343 is a deficient number, since it is larger than the sum of its proper divisors (259065).

212532343 is an equidigital number, since it uses as much as digits as its factorization.

212532343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259064.

The product of its digits is 4320, while the sum is 25.

The square root of 212532343 is about 14578.4890506527. The cubic root of 212532343 is about 596.7718695861.

Adding to 212532343 its reverse (343235212), we get a palindrome (555767555).

The spelling of 212532343 in words is "two hundred twelve million, five hundred thirty-two thousand, three hundred forty-three".

Divisors: 1 823 258241 212532343