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227812201 is a prime number
BaseRepresentation
bin11011001010000…
…10001101101001
3120212200001120221
431211002031221
5431304442301
634334450041
75434241341
oct1545021551
9525601527
10227812201
11107659751
1264363921
1338274526
1422381d21
1514eeeda1
hexd942369

227812201 has 2 divisors, whose sum is σ = 227812202. Its totient is φ = 227812200.

The previous prime is 227812183. The next prime is 227812213. The reversal of 227812201 is 102218722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193237801 + 34574400 = 13901^2 + 5880^2 .

It is a cyclic number.

It is not a de Polignac number, because 227812201 - 213 = 227804009 is a prime.

It is not a weakly prime, because it can be changed into another prime (227812241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113906100 + 113906101.

It is an arithmetic number, because the mean of its divisors is an integer number (113906101).

Almost surely, 2227812201 is an apocalyptic number.

It is an amenable number.

227812201 is a deficient number, since it is larger than the sum of its proper divisors (1).

227812201 is an equidigital number, since it uses as much as digits as its factorization.

227812201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 227812201 is about 15093.4489431674. The cubic root of 227812201 is about 610.7436965367.

The spelling of 227812201 in words is "two hundred twenty-seven million, eight hundred twelve thousand, two hundred one".