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2815030117 is a prime number
BaseRepresentation
bin1010011111001001…
…1111001101100101
321021011222100100201
42213302133031211
521231121430432
61143155510501
7126521234614
oct24762371545
97234870321
102815030117
111215013879
126668b8431
1335b2904c3
141c9c1787b
15117207ee7
hexa7c9f365

2815030117 has 2 divisors, whose sum is σ = 2815030118. Its totient is φ = 2815030116.

The previous prime is 2815030103. The next prime is 2815030171. The reversal of 2815030117 is 7110305182.

Together with next prime (2815030171) 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., 2474664516 + 340365601 = 49746^2 + 18449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2815030117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2815037117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1407515058 + 1407515059.

It is an arithmetic number, because the mean of its divisors is an integer number (1407515059).

Almost surely, 22815030117 is an apocalyptic number.

It is an amenable number.

2815030117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2815030117 is an equidigital number, since it uses as much as digits as its factorization.

2815030117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 2815030117 is about 53056.8573984551. The cubic root of 2815030117 is about 1411.9771931262.

Adding to 2815030117 its reverse (7110305182), we get a palindrome (9925335299).

The spelling of 2815030117 in words is "two billion, eight hundred fifteen million, thirty thousand, one hundred seventeen".