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22050013 = 1943137197
BaseRepresentation
bin101010000011…
…1010011011101
31112111020221011
41110013103131
521121100023
62104335221
7355264516
oct124072335
945436834
1022050013
11114a0557
127474511
13475055b
142cdda0d
151e0850d
hex15074dd

22050013 has 16 divisors (see below), whose sum is σ = 24045120. Its totient is φ = 20151936.

The previous prime is 22050001. The next prime is 22050019. The reversal of 22050013 is 31005022.

It is a cyclic number.

It is not a de Polignac number, because 22050013 - 25 = 22049981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22049975 and 22050002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22050019) 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 15 ways as a sum of consecutive naturals, for example, 111831 + ... + 112027.

It is an arithmetic number, because the mean of its divisors is an integer number (1502820).

Almost surely, 222050013 is an apocalyptic number.

It is an amenable number.

22050013 is a deficient number, since it is larger than the sum of its proper divisors (1995107).

22050013 is a wasteful number, since it uses less digits than its factorization.

22050013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 22050013 is about 4695.7441369819. The cubic root of 22050013 is about 280.4161032684.

Adding to 22050013 its reverse (31005022), we get a palindrome (53055035).

The spelling of 22050013 in words is "twenty-two million, fifty thousand, thirteen".

Divisors: 1 19 43 137 197 817 2603 3743 5891 8471 26989 111929 160949 512791 1160527 22050013