Search a number
-
+
7012890061 is a prime number
BaseRepresentation
bin1101000100000000…
…00011010111001101
3200002201222201121221
412202000003113031
5103330244440221
63115514323341
7335533403422
oct64200032715
920081881557
107012890061
112a79659111
121438729551
13879b9a0b8
144a7553d49
152b0a13541
hex1a20035cd

7012890061 has 2 divisors, whose sum is σ = 7012890062. Its totient is φ = 7012890060.

The previous prime is 7012890047. The next prime is 7012890097. The reversal of 7012890061 is 1600982107.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5120118025 + 1892772036 = 71555^2 + 43506^2 .

It is a cyclic number.

It is not a de Polignac number, because 7012890061 - 217 = 7012758989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7012889999 and 7012890026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7012890041) 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, 3506445030 + 3506445031.

It is an arithmetic number, because the mean of its divisors is an integer number (3506445031).

Almost surely, 27012890061 is an apocalyptic number.

It is an amenable number.

7012890061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7012890061 is an equidigital number, since it uses as much as digits as its factorization.

7012890061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 7012890061 is about 83743.0000716478. Note that the first 4 decimals coincide. The cubic root of 7012890061 is about 1914.1046437169.

The spelling of 7012890061 in words is "seven billion, twelve million, eight hundred ninety thousand, sixty-one".