Search a number
-
+
23279941 is a prime number
BaseRepresentation
bin101100011001…
…1100101000101
31121210202002001
41120303211011
521424424231
62150545301
7401606356
oct130634505
947722061
1023279941
1112160623
127968231
134a91319
14313dd2d
15209cb61
hex1633945

23279941 has 2 divisors, whose sum is σ = 23279942. Its totient is φ = 23279940.

The previous prime is 23279939. The next prime is 23279947. The reversal of 23279941 is 14997232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17892900 + 5387041 = 4230^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 23279941 - 21 = 23279939 is a prime.

Together with 23279939, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23279941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23279947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11639970 + 11639971.

It is an arithmetic number, because the mean of its divisors is an integer number (11639971).

Almost surely, 223279941 is an apocalyptic number.

It is an amenable number.

23279941 is a deficient number, since it is larger than the sum of its proper divisors (1).

23279941 is an equidigital number, since it uses as much as digits as its factorization.

23279941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 23279941 is about 4824.9291186503. The cubic root of 23279941 is about 285.5358381303.

The spelling of 23279941 in words is "twenty-three million, two hundred seventy-nine thousand, nine hundred forty-one".