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11080681 is a prime number
BaseRepresentation
bin101010010001…
…001111101001
3202211221211121
4222101033221
510314040211
61033255241
7163120123
oct52211751
922757747
1011080681
116289097
123864521
1323ac721
141686213
15e8d271
hexa913e9

11080681 has 2 divisors, whose sum is σ = 11080682. Its totient is φ = 11080680.

The previous prime is 11080679. The next prime is 11080717. The reversal of 11080681 is 18608011.

It is a happy number.

11080681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 250000 = 3291^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 11080681 - 21 = 11080679 is a prime.

It is a super-2 number, since 2×110806812 = 245562982847522, which contains 22 as substring.

Together with 11080679, it forms a pair of twin primes.

It is equal to p731509 and since 11080681 and 731509 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11080631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5540340 + 5540341.

It is an arithmetic number, because the mean of its divisors is an integer number (5540341).

Almost surely, 211080681 is an apocalyptic number.

It is an amenable number.

11080681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11080681 is an equidigital number, since it uses as much as digits as its factorization.

11080681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 11080681 is about 3328.7656871579. The cubic root of 11080681 is about 222.9404212533.

Adding to 11080681 its reverse (18608011), we get a palindrome (29688692).

The spelling of 11080681 in words is "eleven million, eighty thousand, six hundred eighty-one".