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879230813 is a prime number
BaseRepresentation
bin110100011001111…
…111111101011101
32021021102112221012
4310121333331131
53300040341223
6223124545005
730534224066
oct6431777535
92237375835
10879230813
1141133713a
12206552165
13110204126
1484ab156d
15522c7c78
hex3467ff5d

879230813 has 2 divisors, whose sum is σ = 879230814. Its totient is φ = 879230812.

The previous prime is 879230783. The next prime is 879230827. The reversal of 879230813 is 318032978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 873675364 + 5555449 = 29558^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 879230813 - 222 = 875036509 is a prime.

It is a super-3 number, since 3×8792308133 (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879230413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439615406 + 439615407.

It is an arithmetic number, because the mean of its divisors is an integer number (439615407).

Almost surely, 2879230813 is an apocalyptic number.

It is an amenable number.

879230813 is a deficient number, since it is larger than the sum of its proper divisors (1).

879230813 is an equidigital number, since it uses as much as digits as its factorization.

879230813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 879230813 is about 29651.8264698821. The cubic root of 879230813 is about 958.0046856406.

The spelling of 879230813 in words is "eight hundred seventy-nine million, two hundred thirty thousand, eight hundred thirteen".