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12144404 = 224370607
BaseRepresentation
bin101110010100…
…111100010100
3211211222222202
4232110330110
511102110104
61112144032
7205140266
oct56247424
924758882
1012144404
1169452a8
124098018
13269294c
141881b36
1510ed51e
hexb94f14

12144404 has 12 divisors (see below), whose sum is σ = 21747264. Its totient is φ = 5930904.

The previous prime is 12144403. The next prime is 12144413. The reversal of 12144404 is 40444121.

It is a happy number.

12144404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35132 + ... + 35475.

It is an arithmetic number, because the mean of its divisors is an integer number (1812272).

Almost surely, 212144404 is an apocalyptic number.

It is an amenable number.

12144404 is a deficient number, since it is larger than the sum of its proper divisors (9602860).

12144404 is a wasteful number, since it uses less digits than its factorization.

12144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70654 (or 70652 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 12144404 is about 3484.8822074785. The cubic root of 12144404 is about 229.8575299147.

Adding to 12144404 its reverse (40444121), we get a palindrome (52588525).

The spelling of 12144404 in words is "twelve million, one hundred forty-four thousand, four hundred four".

Divisors: 1 2 4 43 86 172 70607 141214 282428 3036101 6072202 12144404