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22330524 = 2231860877
BaseRepresentation
bin101010100101…
…1110010011100
31120000111201110
41111023302130
521204034044
62114342020
7360543366
oct125136234
946014643
1022330524
1111672287
12758a910
13481b138
142d73d36
151e616b9
hex154bc9c

22330524 has 12 divisors (see below), whose sum is σ = 52104584. Its totient is φ = 7443504.

The previous prime is 22330523. The next prime is 22330547. The reversal of 22330524 is 42503322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×223305242 = 997304604229152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22330524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22330523) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 930427 + ... + 930450.

Almost surely, 222330524 is an apocalyptic number.

It is an amenable number.

22330524 is an abundant number, since it is smaller than the sum of its proper divisors (29774060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22330524 is a wasteful number, since it uses less digits than its factorization.

22330524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860884 (or 1860882 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 22330524 is about 4725.5183842622. The cubic root of 22330524 is about 281.6002080911.

Adding to 22330524 its reverse (42503322), we get a palindrome (64833846).

The spelling of 22330524 in words is "twenty-two million, three hundred thirty thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 12 1860877 3721754 5582631 7443508 11165262 22330524