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22000672 = 25687521
BaseRepresentation
bin101001111101…
…1010000100000
31112101202020201
41103323100200
521113010142
62103314544
7355000621
oct123732040
945352221
1022000672
1111467481
12744ba54
134733c65
142cc9a48
151de8ab7
hex14fb420

22000672 has 12 divisors (see below), whose sum is σ = 43313886. Its totient is φ = 11000320.

The previous prime is 22000663. The next prime is 22000679. The reversal of 22000672 is 27600022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19678096 + 2322576 = 4436^2 + 1524^2 .

It is not an unprimeable number, because it can be changed into a prime (22000679) 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 as a sum of consecutive naturals, namely, 343729 + ... + 343792.

Almost surely, 222000672 is an apocalyptic number.

It is an amenable number.

22000672 is a deficient number, since it is larger than the sum of its proper divisors (21313214).

22000672 is an equidigital number, since it uses as much as digits as its factorization.

22000672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687531 (or 687523 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22000672 is about 4690.4873947171. The cubic root of 22000672 is about 280.2067860220.

Adding to 22000672 its reverse (27600022), we get a palindrome (49600694).

The spelling of 22000672 in words is "twenty-two million, six hundred seventy-two", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 687521 1375042 2750084 5500168 11000336 22000672