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2865420379 is a prime number
BaseRepresentation
bin1010101011001010…
…1101100001011011
321101200210102210201
42222302231201123
521332021423004
61152155523031
7131002446163
oct25262554133
97350712721
102865420379
111240500818
1267b759477
13368854423
141d27b35a3
1511b85d6a4
hexaacad85b

2865420379 has 2 divisors, whose sum is σ = 2865420380. Its totient is φ = 2865420378.

The previous prime is 2865420353. The next prime is 2865420401. The reversal of 2865420379 is 9730245682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2865420379 - 27 = 2865420251 is a prime.

It is not a weakly prime, because it can be changed into another prime (2865420479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432710189 + 1432710190.

It is an arithmetic number, because the mean of its divisors is an integer number (1432710190).

Almost surely, 22865420379 is an apocalyptic number.

2865420379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865420379 is an equidigital number, since it uses as much as digits as its factorization.

2865420379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 2865420379 is about 53529.6215099640. The cubic root of 2865420379 is about 1420.3524184800.

The spelling of 2865420379 in words is "two billion, eight hundred sixty-five million, four hundred twenty thousand, three hundred seventy-nine".