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310012061 is a prime number
BaseRepresentation
bin10010011110100…
…110100010011101
3210121100020121012
4102132212202131
51113330341221
650432345005
710453026152
oct2236464235
9717306535
10310012061
11149aa2717
12879a5165
134c2c4cb8
142d25c229
151c33a65b
hex127a689d

310012061 has 2 divisors, whose sum is σ = 310012062. Its totient is φ = 310012060.

The previous prime is 310012033. The next prime is 310012081. The reversal of 310012061 is 160210013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221087161 + 88924900 = 14869^2 + 9430^2 .

It is a cyclic number.

It is not a de Polignac number, because 310012061 - 214 = 309995677 is a prime.

It is a super-2 number, since 2×3100120612 = 192214955930935442, 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 (310012081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155006030 + 155006031.

It is an arithmetic number, because the mean of its divisors is an integer number (155006031).

Almost surely, 2310012061 is an apocalyptic number.

It is an amenable number.

310012061 is a deficient number, since it is larger than the sum of its proper divisors (1).

310012061 is an equidigital number, since it uses as much as digits as its factorization.

310012061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 310012061 is about 17607.1593677118. The cubic root of 310012061 is about 676.7987222620.

Adding to 310012061 its reverse (160210013), we get a palindrome (470222074).

The spelling of 310012061 in words is "three hundred ten million, twelve thousand, sixty-one".