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12213024 = 253127219
BaseRepresentation
bin101110100101…
…101100100000
3211222111010020
4232211230200
511111304044
61113433440
7205544325
oct56455440
924874106
1012213024
11699190a
12410b880
1326b7c55
14189cb4c
151113a19
hexba5b20

12213024 has 24 divisors (see below), whose sum is σ = 32059440. Its totient is φ = 4070976.

The previous prime is 12213017. The next prime is 12213037. The reversal of 12213024 is 42031221.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 12212994 and 12213012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63514 + ... + 63705.

It is an arithmetic number, because the mean of its divisors is an integer number (1335810).

Almost surely, 212213024 is an apocalyptic number.

It is an amenable number.

12213024 is an abundant number, since it is smaller than the sum of its proper divisors (19846416).

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

12213024 is a wasteful number, since it uses less digits than its factorization.

12213024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127232 (or 127224 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12213024 is about 3494.7137221810. The cubic root of 12213024 is about 230.2896413997.

Adding to 12213024 its reverse (42031221), we get a palindrome (54244245).

The spelling of 12213024 in words is "twelve million, two hundred thirteen thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 127219 254438 381657 508876 763314 1017752 1526628 2035504 3053256 4071008 6106512 12213024