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118208879 is a prime number
BaseRepresentation
bin1110000101110…
…11100101101111
322020102122002122
413002323211233
5220230141004
615421343155
72633521205
oct702734557
9266378078
10118208879
11607a9098
1233707abb
131b64a8a9
14119b1075
15a59ecbe
hex70bb96f

118208879 has 2 divisors, whose sum is σ = 118208880. Its totient is φ = 118208878.

The previous prime is 118208873. The next prime is 118208897. The reversal of 118208879 is 978802811.

Together with next prime (118208897) 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 a de Polignac number, because none of the positive numbers 2k-118208879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118208873) 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, 59104439 + 59104440.

It is an arithmetic number, because the mean of its divisors is an integer number (59104440).

Almost surely, 2118208879 is an apocalyptic number.

118208879 is a deficient number, since it is larger than the sum of its proper divisors (1).

118208879 is an equidigital number, since it uses as much as digits as its factorization.

118208879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 44.

The square root of 118208879 is about 10872.3906754678. The cubic root of 118208879 is about 490.7760560959.

The spelling of 118208879 in words is "one hundred eighteen million, two hundred eight thousand, eight hundred seventy-nine".