Search a number
-
+
2985358021 is a prime number
BaseRepresentation
bin1011000111110000…
…1111001011000101
321201001110220022121
42301330033023011
522103222424041
61212122325541
7133660060462
oct26174171305
97631426277
102985358021
1112a217a738
126b39598b1
13387658b49
142046b4669
151271507d1
hexb1f0f2c5

2985358021 has 2 divisors, whose sum is σ = 2985358022. Its totient is φ = 2985358020.

The previous prime is 2985358009. The next prime is 2985358067. The reversal of 2985358021 is 1208535892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2491407396 + 493950625 = 49914^2 + 22225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2985358021 - 211 = 2985355973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2985358121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1492679010 + 1492679011.

It is an arithmetic number, because the mean of its divisors is an integer number (1492679011).

Almost surely, 22985358021 is an apocalyptic number.

It is an amenable number.

2985358021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2985358021 is an equidigital number, since it uses as much as digits as its factorization.

2985358021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 2985358021 is about 54638.4298914235. The cubic root of 2985358021 is about 1439.8993661992.

The spelling of 2985358021 in words is "two billion, nine hundred eighty-five million, three hundred fifty-eight thousand, twenty-one".