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4978013 is a prime number
BaseRepresentation
bin10010111111010101011101
3100100220112212
4102333111131
52233244023
6254410205
760212105
oct22772535
910326485
104978013
1128a0067
121800965
131053a91
14938205
15684e78
hex4bf55d

4978013 has 2 divisors, whose sum is σ = 4978014. Its totient is φ = 4978012.

The previous prime is 4978009. The next prime is 4978031. The reversal of 4978013 is 3108794.

4978013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (4978031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2748964 + 2229049 = 1658^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 4978013 - 22 = 4978009 is a prime.

It is a super-2 number, since 2×49780132 = 49561226856338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489006 + 2489007.

It is an arithmetic number, because the mean of its divisors is an integer number (2489007).

Almost surely, 24978013 is an apocalyptic number.

It is an amenable number.

4978013 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978013 is an equidigital number, since it uses as much as digits as its factorization.

4978013 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 32.

The square root of 4978013 is about 2231.1461180299. The cubic root of 4978013 is about 170.7465780930.

The spelling of 4978013 in words is "four million, nine hundred seventy-eight thousand, thirteen".