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118108845 = 32519138139
BaseRepresentation
bin1110000101000…
…11001010101101
322020020112212200
413002203022231
5220213440340
615415252113
72632623441
oct702431255
9266215780
10118108845
116073aa18
123367a039
131b6141ba
1411986821
15a580330
hex70a32ad

118108845 has 24 divisors (see below), whose sum is σ = 215498400. Its totient is φ = 59675616.

The previous prime is 118108819. The next prime is 118108889. The reversal of 118108845 is 548801811.

It is a happy number.

It is not a de Polignac number, because 118108845 - 214 = 118092461 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68215 + ... + 69924.

It is an arithmetic number, because the mean of its divisors is an integer number (8979100).

Almost surely, 2118108845 is an apocalyptic number.

118108845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118108845 is a deficient number, since it is larger than the sum of its proper divisors (97389555).

118108845 is a wasteful number, since it uses less digits than its factorization.

118108845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138169 (or 138166 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 118108845 is about 10867.7893336225. The cubic root of 118108845 is about 490.6375776456.

The spelling of 118108845 in words is "one hundred eighteen million, one hundred eight thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 19 45 57 95 171 285 855 138139 414417 690695 1243251 2072085 2624641 6216255 7873923 13123205 23621769 39369615 118108845