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212000343 = 3378323011
BaseRepresentation
bin11001010001011…
…01111001010111
3112202220201210120
430220231321113
5413233002333
633011523023
75152654542
oct1450557127
9482821716
10212000343
11a9739aa5
125abb9473
1334bc94b9
1420227859
1513929db3
hexca2de57

212000343 has 16 divisors (see below), whose sum is σ = 293817216. Its totient is φ = 135851040.

The previous prime is 212000339. The next prime is 212000357. The reversal of 212000343 is 343000212.

It is not a de Polignac number, because 212000343 - 22 = 212000339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2293 + ... + 20718.

It is an arithmetic number, because the mean of its divisors is an integer number (18363576).

Almost surely, 2212000343 is an apocalyptic number.

212000343 is a deficient number, since it is larger than the sum of its proper divisors (81816873).

212000343 is a wasteful number, since it uses less digits than its factorization.

212000343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23134.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 212000343 is about 14560.2315572246. The cubic root of 212000343 is about 596.2735173492.

Adding to 212000343 its reverse (343000212), we get a palindrome (555000555).

The spelling of 212000343 in words is "two hundred twelve million, three hundred forty-three", and thus it is an aban number.

Divisors: 1 3 37 83 111 249 3071 9213 23011 69033 851407 1909913 2554221 5729739 70666781 212000343