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11908261 is a prime number
BaseRepresentation
bin101101011011…
…010010100101
3211102000001201
4231123102211
511022031021
61103122501
7203134651
oct55332245
924360051
1011908261
1167a3942
123ba3431
13260c311
14181da61
1510a3591
hexb5b4a5

11908261 has 2 divisors, whose sum is σ = 11908262. Its totient is φ = 11908260.

The previous prime is 11908219. The next prime is 11908301. The reversal of 11908261 is 16280911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6220036 + 5688225 = 2494^2 + 2385^2 .

It is a cyclic number.

It is not a de Polignac number, because 11908261 - 27 = 11908133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11908661) 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, 5954130 + 5954131.

It is an arithmetic number, because the mean of its divisors is an integer number (5954131).

Almost surely, 211908261 is an apocalyptic number.

It is an amenable number.

11908261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11908261 is an equidigital number, since it uses as much as digits as its factorization.

11908261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 11908261 is about 3450.8348265311. The cubic root of 11908261 is about 228.3579391081.

The spelling of 11908261 in words is "eleven million, nine hundred eight thousand, two hundred sixty-one".