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23320141 = 132178117
BaseRepresentation
bin101100011110…
…1011001001101
31121212210012221
41120331121031
521432221031
62151455341
7402134515
oct130753115
947783187
1023320141
1112188849
127987551
134aa6700
143150845
1520a9a11
hex163d64d

23320141 has 12 divisors (see below), whose sum is σ = 26740692. Its totient is φ = 20257536.

The previous prime is 23320133. The next prime is 23320151. The reversal of 23320141 is 14102332.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 900 + 23319241 = 30^2 + 4829^2 .

It is not a de Polignac number, because 23320141 - 23 = 23320133 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 (23320111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1186 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (2228391).

Almost surely, 223320141 is an apocalyptic number.

It is an amenable number.

23320141 is a deficient number, since it is larger than the sum of its proper divisors (3420551).

23320141 is a wasteful number, since it uses less digits than its factorization.

23320141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8160 (or 8147 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23320141 is about 4829.0931860961. The cubic root of 23320141 is about 285.7000988551.

Adding to 23320141 its reverse (14102332), we get a palindrome (37422473).

The spelling of 23320141 in words is "twenty-three million, three hundred twenty thousand, one hundred forty-one".

Divisors: 1 13 17 169 221 2873 8117 105521 137989 1371773 1793857 23320141