Search a number
-
+
118683085 = 523736617
BaseRepresentation
bin1110001001011…
…11010111001101
322021022201120211
413010233113031
5220340324320
615435442421
72640534553
oct704572715
9267281524
10118683085
1160aa23a4
12338b6411
131b7856a1
1411a95bd3
15a64555a
hex712f5cd

118683085 has 4 divisors (see below), whose sum is σ = 142419708. Its totient is φ = 94946464.

The previous prime is 118683083. The next prime is 118683107. The reversal of 118683085 is 580386811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580386811 = 4211378591.

It can be written as a sum of positive squares in 2 ways, for example, as 87647044 + 31036041 = 9362^2 + 5571^2 .

It is a cyclic number.

It is not a de Polignac number, because 118683085 - 21 = 118683083 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118683083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11868304 + ... + 11868313.

It is an arithmetic number, because the mean of its divisors is an integer number (35604927).

Almost surely, 2118683085 is an apocalyptic number.

It is an amenable number.

118683085 is a deficient number, since it is larger than the sum of its proper divisors (23736623).

118683085 is an equidigital number, since it uses as much as digits as its factorization.

118683085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23736622.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 118683085 is about 10894.1766554430. The cubic root of 118683085 is about 491.4314452102.

The spelling of 118683085 in words is "one hundred eighteen million, six hundred eighty-three thousand, eighty-five".

Divisors: 1 5 23736617 118683085