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2028000647 is a prime number
BaseRepresentation
bin111100011100000…
…1101010110000111
312020100001002220002
41320320031112013
513123132010042
6533123031515
7101153502221
oct17070152607
95210032802
102028000647
119508319a2
1248720b59b
132641cc2aa
141534a7411
15bd094132
hex78e0d587

2028000647 has 2 divisors, whose sum is σ = 2028000648. Its totient is φ = 2028000646.

The previous prime is 2028000617. The next prime is 2028000649. The reversal of 2028000647 is 7460008202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028000647 - 214 = 2027984263 is a prime.

It is a super-2 number, since 2×20280006472 = 8225573248464837218, which contains 22 as substring.

Together with 2028000649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028000649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014000323 + 1014000324.

It is an arithmetic number, because the mean of its divisors is an integer number (1014000324).

Almost surely, 22028000647 is an apocalyptic number.

2028000647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028000647 is an equidigital number, since it uses as much as digits as its factorization.

2028000647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2028000647 is about 45033.3281803599. The cubic root of 2028000647 is about 1265.7735892257.

Adding to 2028000647 its reverse (7460008202), we get a palindrome (9488008849).

The spelling of 2028000647 in words is "two billion, twenty-eight million, six hundred forty-seven", and thus it is an aban number.