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23311129 is a prime number
BaseRepresentation
bin101100011101…
…1001100011001
31121212022212011
41120323030121
521431424004
62151345521
7402066322
oct130731431
947768764
1023311129
1112181aa6
1279822a1
134aa258a
14314b449
1520a7004
hex163b319

23311129 has 2 divisors, whose sum is σ = 23311130. Its totient is φ = 23311128.

The previous prime is 23311111. The next prime is 23311133. The reversal of 23311129 is 92111332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 1827904 = 4635^2 + 1352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23311129 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311139) 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, 11655564 + 11655565.

It is an arithmetic number, because the mean of its divisors is an integer number (11655565).

Almost surely, 223311129 is an apocalyptic number.

It is an amenable number.

23311129 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311129 is an equidigital number, since it uses as much as digits as its factorization.

23311129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

The square root of 23311129 is about 4828.1600014913. The cubic root of 23311129 is about 285.6632914586.

The spelling of 23311129 in words is "twenty-three million, three hundred eleven thousand, one hundred twenty-nine".