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20322030211 = 72903147173
BaseRepresentation
bin10010111011010010…
…011001001010000011
31221110021111002122121
4102323102121022003
5313104414431321
613200311345111
71316412256330
oct227322311203
957407432577
1020322030211
11868929009a
123b31982197
131bbb319c62
14daad91987
157de17c441
hex4bb499283

20322030211 has 4 divisors (see below), whose sum is σ = 23225177392. Its totient is φ = 17418883032.

The previous prime is 20322030181. The next prime is 20322030217. The reversal of 20322030211 is 11203022302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11203022302 = 25601511151.

It is a cyclic number.

It is not a de Polignac number, because 20322030211 - 27 = 20322030083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20322030217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451573580 + ... + 1451573593.

It is an arithmetic number, because the mean of its divisors is an integer number (5806294348).

Almost surely, 220322030211 is an apocalyptic number.

20322030211 is a deficient number, since it is larger than the sum of its proper divisors (2903147181).

20322030211 is an equidigital number, since it uses as much as digits as its factorization.

20322030211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903147180.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20322030211 its reverse (11203022302), we get a palindrome (31525052513).

The spelling of 20322030211 in words is "twenty billion, three hundred twenty-two million, thirty thousand, two hundred eleven".

Divisors: 1 7 2903147173 20322030211