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14781089 is a prime number
BaseRepresentation
bin111000011000…
…101010100001
31000210221211202
4320120222201
512240443324
61244450545
7236431361
oct70305241
930727752
1014781089
118386284
124b49a55
1330a6b0b
141d6a9a1
15146e8ae
hexe18aa1

14781089 has 2 divisors, whose sum is σ = 14781090. Its totient is φ = 14781088.

The previous prime is 14781083. The next prime is 14781103. The reversal of 14781089 is 98018741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14569489 + 211600 = 3817^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 14781089 - 24 = 14781073 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14781083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7390544 + 7390545.

It is an arithmetic number, because the mean of its divisors is an integer number (7390545).

Almost surely, 214781089 is an apocalyptic number.

It is an amenable number.

14781089 is a deficient number, since it is larger than the sum of its proper divisors (1).

14781089 is an equidigital number, since it uses as much as digits as its factorization.

14781089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 14781089 is about 3844.6181865044. The cubic root of 14781089 is about 245.4155878604.

The spelling of 14781089 in words is "fourteen million, seven hundred eighty-one thousand, eighty-nine".