Search a number
-
+
118720079 is a prime number
BaseRepresentation
bin1110001001110…
…00011001001111
322021101121022222
413010320121033
5220343020304
615440325555
72641050452
oct704703117
9267347288
10118720079
1161018175
12339138bb
131b79948a
1411aa5499
15a6514be
hex713864f

118720079 has 2 divisors, whose sum is σ = 118720080. Its totient is φ = 118720078.

The previous prime is 118720009. The next prime is 118720081. The reversal of 118720079 is 970027811.

It is a strong prime.

It is an emirp because it is prime and its reverse (970027811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-118720079 is a prime.

Together with 118720081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118720009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59360039 + 59360040.

It is an arithmetic number, because the mean of its divisors is an integer number (59360040).

Almost surely, 2118720079 is an apocalyptic number.

118720079 is a deficient number, since it is larger than the sum of its proper divisors (1).

118720079 is an equidigital number, since it uses as much as digits as its factorization.

118720079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 118720079 is about 10895.8744027269. The cubic root of 118720079 is about 491.4825002988.

The spelling of 118720079 in words is "one hundred eighteen million, seven hundred twenty thousand, seventy-nine".