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22130632 = 232766329
BaseRepresentation
bin101010001101…
…0111111001000
31112122100112001
41110122333020
521131140012
62110200344
7356051536
oct124327710
945570461
1022130632
1111546087
1274b30b4
13477b164
142d21156
151e22357
hex151afc8

22130632 has 8 divisors (see below), whose sum is σ = 41494950. Its totient is φ = 11065312.

The previous prime is 22130609. The next prime is 22130653. The reversal of 22130632 is 23603122.

It can be written as a sum of positive squares in only one way, i.e., 14699556 + 7431076 = 3834^2 + 2726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1383157 + ... + 1383172.

Almost surely, 222130632 is an apocalyptic number.

It is an amenable number.

22130632 is a deficient number, since it is larger than the sum of its proper divisors (19364318).

22130632 is a wasteful number, since it uses less digits than its factorization.

22130632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766335 (or 2766331 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 22130632 is about 4704.3205673083. The cubic root of 22130632 is about 280.7574389705.

Adding to 22130632 its reverse (23603122), we get a palindrome (45733754).

The spelling of 22130632 in words is "twenty-two million, one hundred thirty thousand, six hundred thirty-two".

Divisors: 1 2 4 8 2766329 5532658 11065316 22130632