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12043131 = 319211283
BaseRepresentation
bin101101111100…
…001101111011
3211122212001220
4231330031323
511040340011
61110043123
7204236112
oct55741573
924585056
1012043131
116886201
1240494a3
132658819
141856c79
1510cd506
hexb7c37b

12043131 has 8 divisors (see below), whose sum is σ = 16902720. Its totient is φ = 7606152.

The previous prime is 12043117. The next prime is 12043151. The reversal of 12043131 is 13134021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12043131 - 26 = 12043067 is a prime.

It is a super-2 number, since 2×120431312 = 290074008566322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12043131.

It is not an unprimeable number, because it can be changed into a prime (12043151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105585 + ... + 105698.

It is an arithmetic number, because the mean of its divisors is an integer number (2112840).

Almost surely, 212043131 is an apocalyptic number.

12043131 is a deficient number, since it is larger than the sum of its proper divisors (4859589).

12043131 is a wasteful number, since it uses less digits than its factorization.

12043131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211305.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12043131 is about 3470.3214548511. The cubic root of 12043131 is about 229.2168131510.

Adding to 12043131 its reverse (13134021), we get a palindrome (25177152).

The spelling of 12043131 in words is "twelve million, forty-three thousand, one hundred thirty-one".

Divisors: 1 3 19 57 211283 633849 4014377 12043131