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2005230637 is a prime number
BaseRepresentation
bin111011110000101…
…0110010000101101
312011202012021022101
41313201112100231
513101314340022
6530551015101
7100456115314
oct16741262055
95152167271
102005230637
1193999a503
1247b66a491
1325c589107
1415045b27b
15bb097627
hex7785642d

2005230637 has 2 divisors, whose sum is σ = 2005230638. Its totient is φ = 2005230636.

The previous prime is 2005230593. The next prime is 2005230659. The reversal of 2005230637 is 7360325002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1891467081 + 113763556 = 43491^2 + 10666^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005230637 - 27 = 2005230509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005230737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002615318 + 1002615319.

It is an arithmetic number, because the mean of its divisors is an integer number (1002615319).

Almost surely, 22005230637 is an apocalyptic number.

It is an amenable number.

2005230637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005230637 is an equidigital number, since it uses as much as digits as its factorization.

2005230637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 2005230637 is about 44779.8016632499. The cubic root of 2005230637 is about 1261.0184587024.

Adding to 2005230637 its reverse (7360325002), we get a palindrome (9365555639).

The spelling of 2005230637 in words is "two billion, five million, two hundred thirty thousand, six hundred thirty-seven".