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2870680139 is a prime number
BaseRepresentation
bin1010101100011011…
…0001101001001011
321102001200122211122
42223012301221023
521334343231024
61152504345455
7131065243565
oct25306615113
97361618748
102870680139
111243473528
1268147528b
13369976502
141d3382335
1511c04bd5e
hexab1b1a4b

2870680139 has 2 divisors, whose sum is σ = 2870680140. Its totient is φ = 2870680138.

The previous prime is 2870680103. The next prime is 2870680193. The reversal of 2870680139 is 9310860782.

2870680139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (2870680193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2870680139 - 28 = 2870679883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2870680139.

It is not a weakly prime, because it can be changed into another prime (2870680199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435340069 + 1435340070.

It is an arithmetic number, because the mean of its divisors is an integer number (1435340070).

Almost surely, 22870680139 is an apocalyptic number.

2870680139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2870680139 is an equidigital number, since it uses as much as digits as its factorization.

2870680139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2870680139 is about 53578.7284190284. The cubic root of 2870680139 is about 1421.2209526367.

The spelling of 2870680139 in words is "two billion, eight hundred seventy million, six hundred eighty thousand, one hundred thirty-nine".