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118424081 = 297951691
BaseRepresentation
bin1110000111100…
…00001000010001
322020211120022002
413003300020101
5220304032311
615430123345
72635405466
oct703601021
9266746262
10118424081
1160935846
12337b0555
131b6c4829
1411a2966d
15a5e393b
hex70f0211

118424081 has 8 divisors (see below), whose sum is σ = 124060800. Its totient is φ = 112890960.

The previous prime is 118424077. The next prime is 118424083. The reversal of 118424081 is 180424811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118424081 - 22 = 118424077 is a prime.

It is a super-2 number, since 2×1184240812 = 28048525921389122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118424083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23555 + ... + 28136.

It is an arithmetic number, because the mean of its divisors is an integer number (15507600).

Almost surely, 2118424081 is an apocalyptic number.

It is an amenable number.

118424081 is a deficient number, since it is larger than the sum of its proper divisors (5636719).

118424081 is an equidigital number, since it uses as much as digits as its factorization.

118424081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51799.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 118424081 is about 10882.2828946871. The cubic root of 118424081 is about 491.0736986034.

Adding to 118424081 its reverse (180424811), we get a palindrome (298848892).

The spelling of 118424081 in words is "one hundred eighteen million, four hundred twenty-four thousand, eighty-one".

Divisors: 1 29 79 2291 51691 1499039 4083589 118424081