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23254729 is a prime number
BaseRepresentation
bin101100010110…
…1011011001001
31121202110111021
41120231123021
521423122404
62150232441
7401443021
oct130553311
947673437
1023254729
1112143693
127955721
134a829c4
143134a81
152095454
hex162d6c9

23254729 has 2 divisors, whose sum is σ = 23254730. Its totient is φ = 23254728.

The previous prime is 23254709. The next prime is 23254733. The reversal of 23254729 is 92745232.

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., 13520329 + 9734400 = 3677^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 23254729 - 25 = 23254697 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23254694 and 23254703.

It is not a weakly prime, because it can be changed into another prime (23254709) 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, 11627364 + 11627365.

It is an arithmetic number, because the mean of its divisors is an integer number (11627365).

Almost surely, 223254729 is an apocalyptic number.

It is an amenable number.

23254729 is a deficient number, since it is larger than the sum of its proper divisors (1).

23254729 is an equidigital number, since it uses as much as digits as its factorization.

23254729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 23254729 is about 4822.3157300202. The cubic root of 23254729 is about 285.4327231796.

The spelling of 23254729 in words is "twenty-three million, two hundred fifty-four thousand, seven hundred twenty-nine".