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20322030131 = 1321311516079
BaseRepresentation
bin10010111011010010…
…011001001000110011
31221110021111002112122
4102323102121020303
5313104414431011
613200311344455
71316412256154
oct227322311063
957407432478
1020322030131
118689290027
123b3198212b
131bbb319c00
14daad9192b
157de17c3db
hex4bb499233

20322030131 has 24 divisors (see below), whose sum is σ = 22324008960. Its totient is φ = 18489276000.

The previous prime is 20322030083. The next prime is 20322030181. The reversal of 20322030131 is 13103022302.

It is not a de Polignac number, because 20322030131 - 218 = 20321767987 is a prime.

It is a super-2 number, since 2×203220301312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20322030181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3339950 + ... + 3346028.

It is an arithmetic number, because the mean of its divisors is an integer number (930167040).

Almost surely, 220322030131 is an apocalyptic number.

20322030131 is a deficient number, since it is larger than the sum of its proper divisors (2001978829).

20322030131 is a wasteful number, since it uses less digits than its factorization.

20322030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387 (or 6374 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20322030131 its reverse (13103022302), we get a palindrome (33425052433).

The spelling of 20322030131 in words is "twenty billion, three hundred twenty-two million, thirty thousand, one hundred thirty-one".

Divisors: 1 13 131 151 169 1703 1963 6079 19781 22139 25519 79027 257153 796349 917929 1027351 3342989 10352537 11933077 120248699 134582981 155130001 1563233087 20322030131