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12670 = 257181
BaseRepresentation
bin11000101111110
3122101021
43011332
5401140
6134354
751640
oct30576
918337
1012670
119579
1273ba
1359c8
144890
153b4a
hex317e

12670 has 16 divisors (see below), whose sum is σ = 26208. Its totient is φ = 4320.

The previous prime is 12659. The next prime is 12671. The reversal of 12670 is 7621.

12670 = 152 + 162 + ... + 342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671) by changing a digit.

12670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21 + ... + 160.

It is an arithmetic number, because the mean of its divisors is an integer number (1638).

212670 is an apocalyptic number.

12670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12670 is an abundant number, since it is smaller than the sum of its proper divisors (13538).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13104).

12670 is a wasteful number, since it uses less digits than its factorization.

12670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12670 is about 112.5610945220. The cubic root of 12670 is about 23.3126801372.

It can be divided in two parts, 126 and 70, that added together give a square (196 = 142).

The spelling of 12670 in words is "twelve thousand, six hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 181 362 905 1267 1810 2534 6335 12670