Search a number
-
+
1001028200987 is a prime number
BaseRepresentation
bin11101001000100011110…
…11100010101000011011
310112200211101011110002002
432210101323202220123
5112400101204412422
62043511020231215
7132215261213363
oct16442173425033
93480741143062
101001028200987
11356596360581
1214200a39b50b
13735202caba9
1436642c159a3
151b08bb68692
hexe911ee2a1b

1001028200987 has 2 divisors, whose sum is σ = 1001028200988. Its totient is φ = 1001028200986.

The previous prime is 1001028200981. The next prime is 1001028200993. The reversal of 1001028200987 is 7890028201001.

1001028200987 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 (1001028200981) and next prime (1001028200993).

It is an emirp because it is prime and its reverse (7890028201001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001028200987 - 212 = 1001028196891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001028200987.

It is not a weakly prime, because it can be changed into another prime (1001028200981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500514100493 + 500514100494.

It is an arithmetic number, because the mean of its divisors is an integer number (500514100494).

Almost surely, 21001028200987 is an apocalyptic number.

1001028200987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001028200987 is an equidigital number, since it uses as much as digits as its factorization.

1001028200987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 1001028200987 in words is "one trillion, one billion, twenty-eight million, two hundred thousand, nine hundred eighty-seven".