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BaseRepresentation
bin1000011101000001111001
311011120212012
420131001321
51031403212
6115255305
724556544
oct10350171
94146765
102216057
111283a58
128aa535
135c789c
1441985b
152db922
hex21d079

2216057 has 2 divisors, whose sum is σ = 2216058. Its totient is φ = 2216056.

The previous prime is 2216047. The next prime is 2216083. The reversal of 2216057 is 7506122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1142761 + 1073296 = 1069^2 + 1036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2216057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2216047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108028 + 1108029.

It is an arithmetic number, because the mean of its divisors is an integer number (1108029).

22216057 is an apocalyptic number.

It is an amenable number.

2216057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216057 is an equidigital number, since it uses as much as digits as its factorization.

2216057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2216057 is about 1488.6426703544. The cubic root of 2216057 is about 130.3747961188.

The spelling of 2216057 in words is "two million, two hundred sixteen thousand, fifty-seven".