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23226631 = 32217211
BaseRepresentation
bin101100010011…
…0100100000111
31121201000221121
41120212210013
521421223011
62145454411
7401265061
oct130464407
947630847
1023226631
111212456a
127941407
134a72c8c
143128731
15208be71
hex1626907

23226631 has 4 divisors (see below), whose sum is σ = 23237064. Its totient is φ = 23216200.

The previous prime is 23226613. The next prime is 23226647. The reversal of 23226631 is 13662232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23226631 - 213 = 23218439 is a prime.

It is a super-2 number, since 2×232266312 = 1078952775220322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23226596 and 23226605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23226611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385 + ... + 6826.

It is an arithmetic number, because the mean of its divisors is an integer number (5809266).

Almost surely, 223226631 is an apocalyptic number.

23226631 is a deficient number, since it is larger than the sum of its proper divisors (10433).

23226631 is an equidigital number, since it uses as much as digits as its factorization.

23226631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10432.

The product of its digits is 2592, while the sum is 25.

The square root of 23226631 is about 4819.4015188610. The cubic root of 23226631 is about 285.3177168802.

Adding to 23226631 its reverse (13662232), we get a palindrome (36888863).

The spelling of 23226631 in words is "twenty-three million, two hundred twenty-six thousand, six hundred thirty-one".

Divisors: 1 3221 7211 23226631