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22252633 = 135332297
BaseRepresentation
bin101010011100…
…0110001011001
31112212112212121
41110320301121
521144041013
62112541241
7360100324
oct124706131
945775777
1022252633
1111619807
127551821
1347c1850
142d537bb
151e4858d
hex1538c59

22252633 has 8 divisors (see below), whose sum is σ = 24417288. Its totient is φ = 20152704.

The previous prime is 22252631. The next prime is 22252639. The reversal of 22252633 is 33625222.

It can be written as a sum of positive squares in 4 ways, for example, as 7414729 + 14837904 = 2723^2 + 3852^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22252633 - 21 = 22252631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22252598 and 22252607.

It is not an unprimeable number, because it can be changed into a prime (22252631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15460 + ... + 16837.

It is an arithmetic number, because the mean of its divisors is an integer number (3052161).

Almost surely, 222252633 is an apocalyptic number.

It is an amenable number.

22252633 is a deficient number, since it is larger than the sum of its proper divisors (2164655).

22252633 is a wasteful number, since it uses less digits than its factorization.

22252633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32363.

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

The square root of 22252633 is about 4717.2696552137. The cubic root of 22252633 is about 281.2724105270.

Adding to 22252633 its reverse (33625222), we get a palindrome (55877855).

The spelling of 22252633 in words is "twenty-two million, two hundred fifty-two thousand, six hundred thirty-three".

Divisors: 1 13 53 689 32297 419861 1711741 22252633