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212752049 is a prime number
BaseRepresentation
bin11001010111001…
…01011010110001
3112211022220221112
430223211122301
5413431031144
633040003105
75162235236
oct1453453261
9484286845
10212752049
11aa102844
125b300495
13351006b3
142038178d
1513a2799e
hexcae56b1

212752049 has 2 divisors, whose sum is σ = 212752050. Its totient is φ = 212752048.

The previous prime is 212752021. The next prime is 212752081. The reversal of 212752049 is 940257212.

It is an a-pointer prime, because the next prime (212752081) can be obtained adding 212752049 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123921424 + 88830625 = 11132^2 + 9425^2 .

It is a cyclic number.

It is not a de Polignac number, because 212752049 - 220 = 211703473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212752549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106376024 + 106376025.

It is an arithmetic number, because the mean of its divisors is an integer number (106376025).

Almost surely, 2212752049 is an apocalyptic number.

It is an amenable number.

212752049 is a deficient number, since it is larger than the sum of its proper divisors (1).

212752049 is an equidigital number, since it uses as much as digits as its factorization.

212752049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 212752049 is about 14586.0223844611. The cubic root of 212752049 is about 596.9774370533.

The spelling of 212752049 in words is "two hundred twelve million, seven hundred fifty-two thousand, forty-nine".