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2866798061 is a prime number
BaseRepresentation
bin1010101011011111…
…1101110111101101
321101210101102121222
42222313331313231
521332400014221
61152245233125
7131020244561
oct25267756755
97353342558
102866798061
1112412618a6
126801027a5
13368c1751a
141d2a516a1
1511ba319ab
hexaadfdded

2866798061 has 2 divisors, whose sum is σ = 2866798062. Its totient is φ = 2866798060.

The previous prime is 2866798049. The next prime is 2866798087. The reversal of 2866798061 is 1608976682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2025450025 + 841348036 = 45005^2 + 29006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2866798061 is a prime.

It is a super-2 number, since 2×28667980612 = 16437062245106719442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2866797994 and 2866798012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2866798001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433399030 + 1433399031.

It is an arithmetic number, because the mean of its divisors is an integer number (1433399031).

Almost surely, 22866798061 is an apocalyptic number.

It is an amenable number.

2866798061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2866798061 is an equidigital number, since it uses as much as digits as its factorization.

2866798061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 2866798061 is about 53542.4883713860. The cubic root of 2866798061 is about 1420.5800151534.

The spelling of 2866798061 in words is "two billion, eight hundred sixty-six million, seven hundred ninety-eight thousand, sixty-one".