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11578289 is a prime number
BaseRepresentation
bin101100001010…
…101110110001
3210210020102112
4230022232301
510431001124
61052055105
7200261642
oct54125661
923706375
1011578289
116598a38
123a64495
132525078
1417756c9
15103a90e
hexb0abb1

11578289 has 2 divisors, whose sum is σ = 11578290. Its totient is φ = 11578288.

The previous prime is 11578267. The next prime is 11578291. The reversal of 11578289 is 98287511.

11578289 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7795264 + 3783025 = 2792^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 11578289 - 28 = 11578033 is a prime.

Together with 11578291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11578789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5789144 + 5789145.

It is an arithmetic number, because the mean of its divisors is an integer number (5789145).

Almost surely, 211578289 is an apocalyptic number.

It is an amenable number.

11578289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11578289 is an equidigital number, since it uses as much as digits as its factorization.

11578289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 41.

The square root of 11578289 is about 3402.6884958809. The cubic root of 11578289 is about 226.2289232831.

The spelling of 11578289 in words is "eleven million, five hundred seventy-eight thousand, two hundred eighty-nine".