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12044420 = 225602221
BaseRepresentation
bin101101111100…
…100010000100
3211122220211122
4231330202010
511040410140
61110053112
7204242633
oct55744204
924586748
1012044420
116887173
12404a198
13265929b
14185751a
1510cdab5
hexb7c884

12044420 has 12 divisors (see below), whose sum is σ = 25293324. Its totient is φ = 4817760.

The previous prime is 12044413. The next prime is 12044441. The reversal of 12044420 is 2444021.

It can be written as a sum of positive squares in 2 ways, for example, as 2096704 + 9947716 = 1448^2 + 3154^2 .

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, 301091 + ... + 301130.

It is an arithmetic number, because the mean of its divisors is an integer number (2107777).

Almost surely, 212044420 is an apocalyptic number.

12044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12044420 is an abundant number, since it is smaller than the sum of its proper divisors (13248904).

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

12044420 is a wasteful number, since it uses less digits than its factorization.

12044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602230 (or 602228 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 12044420 is about 3470.5071675477. The cubic root of 12044420 is about 229.2249907014.

Adding to 12044420 its reverse (2444021), we get a palindrome (14488441).

The spelling of 12044420 in words is "twelve million, forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 602221 1204442 2408884 3011105 6022210 12044420