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2800513 is a prime number
BaseRepresentation
bin1010101011101110000001
312021021120201
422223232001
51204104023
6140005201
732542522
oct12535601
95237521
102800513
111643081
12b30801
13770911
1452c849
153a4bad
hex2abb81

2800513 has 2 divisors, whose sum is σ = 2800514. Its totient is φ = 2800512.

The previous prime is 2800507. The next prime is 2800519. The reversal of 2800513 is 3150082.

It is a happy number.

2800513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2800507) and next prime (2800519).

It can be written as a sum of positive squares in only one way, i.e., 2241009 + 559504 = 1497^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 2800513 - 25 = 2800481 is a prime.

It is not a weakly prime, because it can be changed into another prime (2800519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400256 + 1400257.

It is an arithmetic number, because the mean of its divisors is an integer number (1400257).

22800513 is an apocalyptic number.

It is an amenable number.

2800513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2800513 is an equidigital number, since it uses as much as digits as its factorization.

2800513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2800513 is about 1673.4733341168. The cubic root of 2800513 is about 140.9545818877.

Adding to 2800513 its reverse (3150082), we get a palindrome (5950595).

The spelling of 2800513 in words is "two million, eight hundred thousand, five hundred thirteen".