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3090221 is a prime number
BaseRepresentation
bin1011110010011100101101
312210222222122
423302130231
51242341341
6150122325
735160251
oct13623455
95728878
103090221
111820802
1210503a5
13842744
145a6261
1541094b
hex2f272d

3090221 has 2 divisors, whose sum is σ = 3090222. Its totient is φ = 3090220.

The previous prime is 3090193. The next prime is 3090223. The reversal of 3090221 is 1220903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941225 + 148996 = 1715^2 + 386^2 .

It is an emirp because it is prime and its reverse (1220903) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3090221 is a prime.

Together with 3090223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3090221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3090223) 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, 1545110 + 1545111.

It is an arithmetic number, because the mean of its divisors is an integer number (1545111).

Almost surely, 23090221 is an apocalyptic number.

It is an amenable number.

3090221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3090221 is an equidigital number, since it uses as much as digits as its factorization.

3090221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3090221 is about 1757.9024432545. The cubic root of 3090221 is about 145.6564921116.

The spelling of 3090221 in words is "three million, ninety thousand, two hundred twenty-one".