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12106986 = 232017831
BaseRepresentation
bin101110001011…
…110011101010
3211210002122220
4232023303222
511044410421
61111254510
7204623223
oct56136352
924702586
1012106986
11691a181
12407a436
13267b8c8
14187224a
1510e23c6
hexb8bcea

12106986 has 8 divisors (see below), whose sum is σ = 24213984. Its totient is φ = 4035660.

The previous prime is 12106981. The next prime is 12107003. The reversal of 12106986 is 68960121.

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

12106986 is an admirable number.

It is a super-2 number, since 2×121069862 = 293158220008392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12106981) 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, 1008910 + ... + 1008921.

It is an arithmetic number, because the mean of its divisors is an integer number (3026748).

Almost surely, 212106986 is an apocalyptic number.

12106986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12106986 is a wasteful number, since it uses less digits than its factorization.

12106986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017836.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12106986 is about 3479.5094481838. The cubic root of 12106986 is about 229.6212164792.

The spelling of 12106986 in words is "twelve million, one hundred six thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 2017831 4035662 6053493 12106986