Search a number
-
+
23907641 is a prime number
BaseRepresentation
bin101101100110…
…0110100111001
31122222122010012
41123030310321
522110021031
62212231305
7410132402
oct133146471
948878105
1023907641
111254a18a
12800b535
134c50c44
1432649a9
152173b2b
hex16ccd39

23907641 has 2 divisors, whose sum is σ = 23907642. Its totient is φ = 23907640.

The previous prime is 23907619. The next prime is 23907647. The reversal of 23907641 is 14670932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12752041 + 11155600 = 3571^2 + 3340^2 .

It is a cyclic number.

It is not a de Polignac number, because 23907641 - 26 = 23907577 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23907598 and 23907607.

It is not a weakly prime, because it can be changed into another prime (23907647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11953820 + 11953821.

It is an arithmetic number, because the mean of its divisors is an integer number (11953821).

Almost surely, 223907641 is an apocalyptic number.

It is an amenable number.

23907641 is a deficient number, since it is larger than the sum of its proper divisors (1).

23907641 is an equidigital number, since it uses as much as digits as its factorization.

23907641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23907641 is about 4889.5440482728. The cubic root of 23907641 is about 288.0794252711.

The spelling of 23907641 in words is "twenty-three million, nine hundred seven thousand, six hundred forty-one".