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23780041 = 41580001
BaseRepresentation
bin101101010110…
…1101011001001
31122202011002021
41122231223021
522041430131
62205404441
7406061365
oct132555311
948664067
1023780041
111247232a
127b69721
134c07b3c
1432302a5
15214ae11
hex16adac9

23780041 has 4 divisors (see below), whose sum is σ = 24360084. Its totient is φ = 23200000.

The previous prime is 23780021. The next prime is 23780063. The reversal of 23780041 is 14008732.

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 12988816 + 10791225 = 3604^2 + 3285^2 .

It is a cyclic number.

It is not a de Polignac number, because 23780041 - 29 = 23779529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23779988 and 23780015.

It is not an unprimeable number, because it can be changed into a prime (23780021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289960 + ... + 290041.

It is an arithmetic number, because the mean of its divisors is an integer number (6090021).

Almost surely, 223780041 is an apocalyptic number.

It is an amenable number.

23780041 is a deficient number, since it is larger than the sum of its proper divisors (580043).

23780041 is an equidigital number, since it uses as much as digits as its factorization.

23780041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580042.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 23780041 is about 4876.4783399498. The cubic root of 23780041 is about 287.5659977030.

Adding to 23780041 its reverse (14008732), we get a palindrome (37788773).

The spelling of 23780041 in words is "twenty-three million, seven hundred eighty thousand, forty-one".

Divisors: 1 41 580001 23780041