Search a number
-
+
22338005 = 54467601
BaseRepresentation
bin101010100110…
…1100111010101
31120000212222112
41111031213111
521204304010
62114440405
7360604244
oct125154725
946025875
1022338005
1111677968
127593105
134821671
142d7695b
151e63a05
hex154d9d5

22338005 has 4 divisors (see below), whose sum is σ = 26805612. Its totient is φ = 17870400.

The previous prime is 22337993. The next prime is 22338007. The reversal of 22338005 is 50083322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50083322 = 225041661.

It can be written as a sum of positive squares in 2 ways, for example, as 3319684 + 19018321 = 1822^2 + 4361^2 .

It is not a de Polignac number, because 22338005 - 210 = 22336981 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 (22338007) 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, 2233796 + ... + 2233805.

It is an arithmetic number, because the mean of its divisors is an integer number (6701403).

Almost surely, 222338005 is an apocalyptic number.

It is an amenable number.

22338005 is a deficient number, since it is larger than the sum of its proper divisors (4467607).

22338005 is an equidigital number, since it uses as much as digits as its factorization.

22338005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467606.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22338005 is about 4726.3098713478. The cubic root of 22338005 is about 281.6316510903.

The spelling of 22338005 in words is "twenty-two million, three hundred thirty-eight thousand, five".

Divisors: 1 5 4467601 22338005