Search a number
-
+
12107886 = 237288283
BaseRepresentation
bin101110001100…
…000001101110
3211210010220020
4232030001232
511044423021
61111303010
7204625650
oct56140156
924703806
1012107886
11691a91a
12407aa66
13267c13b
1418726d0
1510e27c6
hexb8c06e

12107886 has 16 divisors (see below), whose sum is σ = 27675264. Its totient is φ = 3459384.

The previous prime is 12107881. The next prime is 12107891. The reversal of 12107886 is 68870121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12107881) and next prime (12107891).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12107881) 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, 144100 + ... + 144183.

It is an arithmetic number, because the mean of its divisors is an integer number (1729704).

Almost surely, 212107886 is an apocalyptic number.

12107886 is an abundant number, since it is smaller than the sum of its proper divisors (15567378).

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

12107886 is a wasteful number, since it uses less digits than its factorization.

12107886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288295.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 12107886 is about 3479.6387743558. The cubic root of 12107886 is about 229.6269061412.

The spelling of 12107886 in words is "twelve million, one hundred seven thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 288283 576566 864849 1729698 2017981 4035962 6053943 12107886