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2870704861 is a prime number
BaseRepresentation
bin1010101100011011…
…0111101011011101
321102001201220202021
42223012313223131
521334400023421
61152505100141
7131065405633
oct25306675335
97361656667
102870704861
111243490062
12681487651
1336998483b
141d338b353
1511c054341
hexab1b7add

2870704861 has 2 divisors, whose sum is σ = 2870704862. Its totient is φ = 2870704860.

The previous prime is 2870704817. The next prime is 2870704883. The reversal of 2870704861 is 1684070782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2453319961 + 417384900 = 49531^2 + 20430^2 .

It is a cyclic number.

It is not a de Polignac number, because 2870704861 - 229 = 2333833949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2870704061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435352430 + 1435352431.

It is an arithmetic number, because the mean of its divisors is an integer number (1435352431).

Almost surely, 22870704861 is an apocalyptic number.

It is an amenable number.

2870704861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2870704861 is an equidigital number, since it uses as much as digits as its factorization.

2870704861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 2870704861 is about 53578.9591257613. The cubic root of 2870704861 is about 1421.2250324275.

The spelling of 2870704861 in words is "two billion, eight hundred seventy million, seven hundred four thousand, eight hundred sixty-one".