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12133413 = 321348157
BaseRepresentation
bin101110010010…
…010000100101
3211211102220200
4232102100211
511101232123
61112021113
7205063245
oct56222045
924742820
1012133413
116938016
124091799
13268a946
14187bb25
1510ea143
hexb92425

12133413 has 6 divisors (see below), whose sum is σ = 17526054. Its totient is φ = 8088936.

The previous prime is 12133411. The next prime is 12133421. The reversal of 12133413 is 31433121.

It can be written as a sum of positive squares in only one way, i.e., 10771524 + 1361889 = 3282^2 + 1167^2 .

It is not a de Polignac number, because 12133413 - 21 = 12133411 is a prime.

It is a super-2 number, since 2×121334132 = 294439422057138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 674070 + ... + 674087.

It is an arithmetic number, because the mean of its divisors is an integer number (2921009).

Almost surely, 212133413 is an apocalyptic number.

It is an amenable number.

12133413 is a deficient number, since it is larger than the sum of its proper divisors (5392641).

12133413 is a wasteful number, since it uses less digits than its factorization.

12133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348163 (or 1348160 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 12133413 is about 3483.3048962157. The cubic root of 12133413 is about 229.7881666470.

Adding to 12133413 its reverse (31433121), we get a palindrome (43566534).

The spelling of 12133413 in words is "twelve million, one hundred thirty-three thousand, four hundred thirteen".

Divisors: 1 3 9 1348157 4044471 12133413