Search a number
-
+
12308648 = 2311139871
BaseRepresentation
bin101110111101…
…000010101000
3212011100021212
4232331002220
511122334043
61115452252
7206423162
oct56750250
925140255
1012308648
116a47740
124157088
13271c631
1418c5932
151132018
hexbbd0a8

12308648 has 16 divisors (see below), whose sum is σ = 25176960. Its totient is φ = 5594800.

The previous prime is 12308623. The next prime is 12308669. The reversal of 12308648 is 84680321.

12308648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 69848 + ... + 70023.

It is an arithmetic number, because the mean of its divisors is an integer number (1573560).

Almost surely, 212308648 is an apocalyptic number.

It is an amenable number.

12308648 is an abundant number, since it is smaller than the sum of its proper divisors (12868312).

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

12308648 is a wasteful number, since it uses less digits than its factorization.

12308648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139888 (or 139884 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12308648 is about 3508.3682816945. The cubic root of 12308648 is about 230.8891105233.

Adding to 12308648 its reverse (84680321), we get a palindrome (96988969).

The spelling of 12308648 in words is "twelve million, three hundred eight thousand, six hundred forty-eight".

Divisors: 1 2 4 8 11 22 44 88 139871 279742 559484 1118968 1538581 3077162 6154324 12308648