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20530200301 = 1318185710181
BaseRepresentation
bin10011000111101100…
…011111111011101101
31221222210012020022221
4103013230133323231
5314021212402201
613233105235341
71324520552242
oct230754377355
957883166287
1020530200301
118785843396
123b8b632b51
131c224a4c20
14dca89d5c9
1580259c4a1
hex4c7b1feed

20530200301 has 16 divisors (see below), whose sum is σ = 22259725488. Its totient is φ = 18822412800.

The previous prime is 20530200293. The next prime is 20530200311. The reversal of 20530200301 is 10300203502.

It can be written as a sum of positive squares in 8 ways, for example, as 1074135076 + 19456065225 = 32774^2 + 139485^2 .

It is a cyclic number.

It is not a de Polignac number, because 20530200301 - 23 = 20530200293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530200311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2011431 + ... + 2021611.

It is an arithmetic number, because the mean of its divisors is an integer number (1391232843).

Almost surely, 220530200301 is an apocalyptic number.

It is an amenable number.

20530200301 is a deficient number, since it is larger than the sum of its proper divisors (1729525187).

20530200301 is a wasteful number, since it uses less digits than its factorization.

20530200301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 20530200301 its reverse (10300203502), we get a palindrome (30830403803).

The spelling of 20530200301 in words is "twenty billion, five hundred thirty million, two hundred thousand, three hundred one".

Divisors: 1 13 181 857 2353 10181 11141 132353 155117 1842761 2016521 8725117 23955893 113426521 1579246177 20530200301