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23326225 = 521325521
BaseRepresentation
bin101100011111…
…0111000010001
31121220002120021
41120332320101
521432414400
62151543441
7402161326
oct130767021
947802507
1023326225
111219237a
12798ab81
134aa9400
143152b4d
1520ab71a
hex163ee11

23326225 has 18 divisors (see below), whose sum is σ = 31326306. Its totient is φ = 17222400.

The previous prime is 23326213. The next prime is 23326231. The reversal of 23326225 is 52262332.

It can be written as a sum of positive squares in 9 ways, for example, as 17313921 + 6012304 = 4161^2 + 2452^2 .

It is not a de Polignac number, because 23326225 - 27 = 23326097 is a prime.

It is a super-2 number, since 2×233262252 = 1088225545501250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23326225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1465 + ... + 6985.

Almost surely, 223326225 is an apocalyptic number.

23326225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23326225 is a deficient number, since it is larger than the sum of its proper divisors (8000081).

23326225 is a wasteful number, since it uses less digits than its factorization.

23326225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557 (or 5539 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 23326225 is about 4829.7230769476. The cubic root of 23326225 is about 285.7249421621.

Adding to 23326225 its reverse (52262332), we get a palindrome (75588557).

The spelling of 23326225 in words is "twenty-three million, three hundred twenty-six thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 169 325 845 4225 5521 27605 71773 138025 358865 933049 1794325 4665245 23326225