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23323145 = 57165699
BaseRepresentation
bin101100011111…
…0001000001001
31121212221100012
41120332020021
521432320040
62151521305
7402146336
oct130761011
947787305
1023323145
111219002a
127989235
134aa7ba1
14315198d
1520aa865
hex163e209

23323145 has 8 divisors (see below), whose sum is σ = 28382400. Its totient is φ = 18395440.

The previous prime is 23323121. The next prime is 23323147. The reversal of 23323145 is 54132332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23323145 - 210 = 23322121 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23323145.

It is not an unprimeable number, because it can be changed into a prime (23323147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32495 + ... + 33204.

It is an arithmetic number, because the mean of its divisors is an integer number (3547800).

Almost surely, 223323145 is an apocalyptic number.

It is an amenable number.

23323145 is a deficient number, since it is larger than the sum of its proper divisors (5059255).

23323145 is an equidigital number, since it uses as much as digits as its factorization.

23323145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65775.

The product of its digits is 2160, while the sum is 23.

The square root of 23323145 is about 4829.4042075602. The cubic root of 23323145 is about 285.7123658800.

Adding to 23323145 its reverse (54132332), we get a palindrome (77455477).

The spelling of 23323145 in words is "twenty-three million, three hundred twenty-three thousand, one hundred forty-five".

Divisors: 1 5 71 355 65699 328495 4664629 23323145