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23308042 = 264118181
BaseRepresentation
bin101100011101…
…0011100001010
31121212011121211
41120322130022
521431324132
62151323334
7402054322
oct130723412
947764554
1023308042
111217a74a
12798054a
134aa1054
14314a282
1520a6147
hex163a70a

23308042 has 8 divisors (see below), whose sum is σ = 35018532. Its totient is φ = 11635200.

The previous prime is 23308013. The next prime is 23308067. The reversal of 23308042 is 24080332.

It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 5659641 = 4201^2 + 2379^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7809 + ... + 10372.

Almost surely, 223308042 is an apocalyptic number.

23308042 is a deficient number, since it is larger than the sum of its proper divisors (11710490).

23308042 is a wasteful number, since it uses less digits than its factorization.

23308042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18824.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 23308042 is about 4827.8403039040. The cubic root of 23308042 is about 285.6506811512.

Adding to 23308042 its reverse (24080332), we get a palindrome (47388374).

The spelling of 23308042 in words is "twenty-three million, three hundred eight thousand, forty-two".

Divisors: 1 2 641 1282 18181 36362 11654021 23308042