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2104012171 is a prime number
BaseRepresentation
bin111110101101000…
…1010110110001011
312102122001220002201
41331122022312023
513302111342141
6544440141031
7103065544162
oct17532126613
95378056081
102104012171
1198a729538
124a8767777
13276b94121
1415d6123d9
15c4aab031
hex7d68ad8b

2104012171 has 2 divisors, whose sum is σ = 2104012172. Its totient is φ = 2104012170.

The previous prime is 2104012153. The next prime is 2104012223. The reversal of 2104012171 is 1712104012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2104012171 - 227 = 1969794443 is a prime.

It is a super-2 number, since 2×21040121712 = 8853734431432266482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2104012121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052006085 + 1052006086.

It is an arithmetic number, because the mean of its divisors is an integer number (1052006086).

Almost surely, 22104012171 is an apocalyptic number.

2104012171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104012171 is an equidigital number, since it uses as much as digits as its factorization.

2104012171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 2104012171 is about 45869.5124347316. The cubic root of 2104012171 is about 1281.3941862528.

Adding to 2104012171 its reverse (1712104012), we get a palindrome (3816116183).

The spelling of 2104012171 in words is "two billion, one hundred four million, twelve thousand, one hundred seventy-one".