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212552253 = 3223616917
BaseRepresentation
bin11001010101101…
…00101000111101
3112210221202212200
430222310220331
5413403133003
633031422113
75160443604
oct1452645075
9483852780
10212552253
11a9a86721
125b224939
1335060784
142032ca3b
15139d86a3
hexcab4a3d

212552253 has 6 divisors (see below), whose sum is σ = 307019934. Its totient is φ = 141701496.

The previous prime is 212552237. The next prime is 212552261. The reversal of 212552253 is 352255212.

It can be written as a sum of positive squares in only one way, i.e., 194937444 + 17614809 = 13962^2 + 4197^2 .

It is not a de Polignac number, because 212552253 - 24 = 212552237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212550253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11808450 + ... + 11808467.

It is an arithmetic number, because the mean of its divisors is an integer number (51169989).

Almost surely, 2212552253 is an apocalyptic number.

It is an amenable number.

212552253 is a deficient number, since it is larger than the sum of its proper divisors (94467681).

212552253 is a wasteful number, since it uses less digits than its factorization.

212552253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23616923 (or 23616920 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 212552253 is about 14579.1718900629. The cubic root of 212552253 is about 596.7905041725.

The spelling of 212552253 in words is "two hundred twelve million, five hundred fifty-two thousand, two hundred fifty-three".

Divisors: 1 3 9 23616917 70850751 212552253