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212434351 = 3110962869
BaseRepresentation
bin11001010100101…
…11110110101111
3112210201210010221
430222113312233
5413340344401
633025112211
75156443063
oct1452276657
9483653127
10212434351
11a9a06088
125b188667
133501bbcc
14202dbaa3
15139b37a1
hexca97daf

212434351 has 8 divisors (see below), whose sum is σ = 221302400. Its totient is φ = 203692320.

The previous prime is 212434349. The next prime is 212434361. The reversal of 212434351 is 153434212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212434351 - 21 = 212434349 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 (212434331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28056 + ... + 34813.

It is an arithmetic number, because the mean of its divisors is an integer number (27662800).

Almost surely, 2212434351 is an apocalyptic number.

212434351 is a deficient number, since it is larger than the sum of its proper divisors (8868049).

212434351 is a wasteful number, since it uses less digits than its factorization.

212434351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63009.

The product of its digits is 2880, while the sum is 25.

The square root of 212434351 is about 14575.1278210519. The cubic root of 212434351 is about 596.6801378869.

Adding to 212434351 its reverse (153434212), we get a palindrome (365868563).

The spelling of 212434351 in words is "two hundred twelve million, four hundred thirty-four thousand, three hundred fifty-one".

Divisors: 1 31 109 3379 62869 1948939 6852721 212434351