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23489293 = 187312541
BaseRepresentation
bin101100110011…
…0101100001101
31122012101020211
41121212230031
522003124133
62155242421
7403440622
oct131465415
948171224
1023489293
1112293943
127a49411
134b356b9
143196349
1520debcd
hex1666b0d

23489293 has 4 divisors (see below), whose sum is σ = 23503708. Its totient is φ = 23474880.

The previous prime is 23489287. The next prime is 23489303. The reversal of 23489293 is 39298432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9253764 + 14235529 = 3042^2 + 3773^2 .

It is a cyclic number.

It is not a de Polignac number, because 23489293 - 25 = 23489261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23489203) 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 in 3 ways as a sum of consecutive naturals, for example, 4398 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (5875927).

Almost surely, 223489293 is an apocalyptic number.

It is an amenable number.

23489293 is a deficient number, since it is larger than the sum of its proper divisors (14415).

23489293 is a wasteful number, since it uses less digits than its factorization.

23489293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14414.

The product of its digits is 93312, while the sum is 40.

The square root of 23489293 is about 4846.5753888700. The cubic root of 23489293 is about 286.3892079839.

The spelling of 23489293 in words is "twenty-three million, four hundred eighty-nine thousand, two hundred ninety-three".

Divisors: 1 1873 12541 23489293