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118031245 = 523606249
BaseRepresentation
bin1110000100100…
…00001110001101
322020002121102121
413002100032031
5220203444440
615413452541
72632151263
oct702201615
9266077377
10118031245
1160697692
1233641151
131b5b7a97
1411966433
15a56734a
hex709038d

118031245 has 4 divisors (see below), whose sum is σ = 141637500. Its totient is φ = 94424992.

The previous prime is 118031233. The next prime is 118031267. The reversal of 118031245 is 542130811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542130811 = 571949441.

It can be written as a sum of positive squares in 2 ways, for example, as 25371369 + 92659876 = 5037^2 + 9626^2 .

It is a cyclic number.

It is not a de Polignac number, because 118031245 - 213 = 118023053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11803120 + ... + 11803129.

It is an arithmetic number, because the mean of its divisors is an integer number (35409375).

Almost surely, 2118031245 is an apocalyptic number.

It is an amenable number.

118031245 is a deficient number, since it is larger than the sum of its proper divisors (23606255).

118031245 is an equidigital number, since it uses as much as digits as its factorization.

118031245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23606254.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 118031245 is about 10864.2185637072. The cubic root of 118031245 is about 490.5301010282.

The spelling of 118031245 in words is "one hundred eighteen million, thirty-one thousand, two hundred forty-five".

Divisors: 1 5 23606249 118031245