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3500052121 is a prime number
BaseRepresentation
bin1101000010011110…
…1000111010011001
3100000220222001220001
43100213220322121
524132003131441
61335150133001
7152506644406
oct32047507231
910026861801
103500052121
111536762a65
128181b1161
1343a187277
14252bb32ad
1515741c731
hexd09e8e99

3500052121 has 2 divisors, whose sum is σ = 3500052122. Its totient is φ = 3500052120.

The previous prime is 3500052119. The next prime is 3500052131. The reversal of 3500052121 is 1212500053.

3500052121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2397081600 + 1102970521 = 48960^2 + 33211^2 .

It is a cyclic number.

It is not a de Polignac number, because 3500052121 - 21 = 3500052119 is a prime.

Together with 3500052119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3500052131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1750026060 + 1750026061.

It is an arithmetic number, because the mean of its divisors is an integer number (1750026061).

Almost surely, 23500052121 is an apocalyptic number.

It is an amenable number.

3500052121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3500052121 is an equidigital number, since it uses as much as digits as its factorization.

3500052121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 3500052121 is about 59161.2383322053. The cubic root of 3500052121 is about 1518.3020225696.

Adding to 3500052121 its reverse (1212500053), we get a palindrome (4712552174).

The spelling of 3500052121 in words is "three billion, five hundred million, fifty-two thousand, one hundred twenty-one".