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1283080489 is a prime number
BaseRepresentation
bin100110001111010…
…0100000100101001
310022102100020112121
41030132210010221
510111432033424
6331152511241
743540001305
oct11436440451
93272306477
101283080489
115a92a13a9
122b984b521
13175a92a32
14c2598d05
157799bee4
hex4c7a4129

1283080489 has 2 divisors, whose sum is σ = 1283080490. Its totient is φ = 1283080488.

The previous prime is 1283080453. The next prime is 1283080567. The reversal of 1283080489 is 9840803821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1003622400 + 279458089 = 31680^2 + 16717^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283080489 - 27 = 1283080361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1283080429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641540244 + 641540245.

It is an arithmetic number, because the mean of its divisors is an integer number (641540245).

Almost surely, 21283080489 is an apocalyptic number.

It is an amenable number.

1283080489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283080489 is an equidigital number, since it uses as much as digits as its factorization.

1283080489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1283080489 is about 35820.1129116032. The cubic root of 1283080489 is about 1086.6373627517.

The spelling of 1283080489 in words is "one billion, two hundred eighty-three million, eighty thousand, four hundred eighty-nine".