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12108286 = 213214583
BaseRepresentation
bin101110001100…
…000111111110
3211210011110001
4232030013332
511044431121
61111304514
7204630061
oct56140776
924704401
1012108286
116920153
12407b13a
13267c388
1418728d8
1510e2991
hexb8c1fe

12108286 has 8 divisors (see below), whose sum is σ = 18180144. Its totient is φ = 6048240.

The previous prime is 12108277. The next prime is 12108319. The reversal of 12108286 is 68280121.

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

It is a super-2 number, since 2×121082862 = 293221179715592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (2272518).

Almost surely, 212108286 is an apocalyptic number.

12108286 is a deficient number, since it is larger than the sum of its proper divisors (6071858).

12108286 is a wasteful number, since it uses less digits than its factorization.

12108286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 12108286 is about 3479.6962511116. The cubic root of 12108286 is about 229.6294347893.

The spelling of 12108286 in words is "twelve million, one hundred eight thousand, two hundred eighty-six".

Divisors: 1 2 1321 2642 4583 9166 6054143 12108286