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12018193 = 111576959
BaseRepresentation
bin101101110110…
…001000010001
3211121120212021
4231312020101
511034040233
61105331441
7204103315
oct55661021
924546767
1012018193
1168694a0
124036b81
13264a375
14184bb45
1510c5e2d
hexb76211

12018193 has 8 divisors (see below), whose sum is σ = 13196160. Its totient is φ = 10854480.

The previous prime is 12018187. The next prime is 12018211. The reversal of 12018193 is 39181021.

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 12018193 - 217 = 11887121 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12018103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1753 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (1649520).

Almost surely, 212018193 is an apocalyptic number.

It is an amenable number.

12018193 is a deficient number, since it is larger than the sum of its proper divisors (1177967).

12018193 is a wasteful number, since it uses less digits than its factorization.

12018193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 12018193 is about 3466.7265539699. The cubic root of 12018193 is about 229.0584889025.

The spelling of 12018193 in words is "twelve million, eighteen thousand, one hundred ninety-three".

Divisors: 1 11 157 1727 6959 76549 1092563 12018193