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87243286279 is a prime number
BaseRepresentation
bin101000101000000011…
…0101110011100000111
322100012010122010211011
41101100012232130013
52412133240130104
6104025022223051
76205653461212
oct1212006563407
9270163563734
1087243286279
1133aaa619296
1214aa9724a87
1382c496c626
144318b44779
152409342904
hex14501ae707

87243286279 has 2 divisors, whose sum is σ = 87243286280. Its totient is φ = 87243286278.

The previous prime is 87243286261. The next prime is 87243286297. The reversal of 87243286279 is 97268234278.

Together with next prime (87243286297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (87243286261) and next prime (87243286297).

It is a cyclic number.

It is not a de Polignac number, because 87243286279 - 233 = 78653351687 is a prime.

It is a super-2 number, since 2×872432862792 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87243086279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43621643139 + 43621643140.

It is an arithmetic number, because the mean of its divisors is an integer number (43621643140).

Almost surely, 287243286279 is an apocalyptic number.

87243286279 is a deficient number, since it is larger than the sum of its proper divisors (1).

87243286279 is an equidigital number, since it uses as much as digits as its factorization.

87243286279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024, while the sum is 58.

The spelling of 87243286279 in words is "eighty-seven billion, two hundred forty-three million, two hundred eighty-six thousand, two hundred seventy-nine".