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12087164 = 2217317467
BaseRepresentation
bin101110000110…
…111101111100
3211202002110202
4232012331330
511043242124
61111023032
7204511355
oct56067574
924662422
1012087164
1169062a1
12406aa78
13267288b
141868d2c
1510db5ae
hexb86f7c

12087164 has 12 divisors (see below), whose sum is σ = 21276024. Its totient is φ = 6008304.

The previous prime is 12087161. The next prime is 12087181. The reversal of 12087164 is 46178021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12087161) 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, 8042 + ... + 9425.

It is an arithmetic number, because the mean of its divisors is an integer number (1773002).

Almost surely, 212087164 is an apocalyptic number.

It is an amenable number.

12087164 is a deficient number, since it is larger than the sum of its proper divisors (9188860).

12087164 is a wasteful number, since it uses less digits than its factorization.

12087164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17644 (or 17642 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 12087164 is about 3476.6598913325. The cubic root of 12087164 is about 229.4958332775.

The spelling of 12087164 in words is "twelve million, eighty-seven thousand, one hundred sixty-four".

Divisors: 1 2 4 173 346 692 17467 34934 69868 3021791 6043582 12087164