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13497844 = 2215972113
BaseRepresentation
bin110011011111…
…010111110100
3221101202120011
4303133113310
511423412334
61201150004
7222505213
oct63372764
927352504
1013497844
11768a148
12462b304
132a479b9
141b1507a
1512b9564
hexcdf5f4

13497844 has 12 divisors (see below), whose sum is σ = 23647204. Its totient is φ = 6741504.

The previous prime is 13497821. The next prime is 13497851. The reversal of 13497844 is 44879431.

It can be written as a sum of positive squares in 2 ways, for example, as 810000 + 12687844 = 900^2 + 3562^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13497797 and 13497806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5332 + ... + 7444.

Almost surely, 213497844 is an apocalyptic number.

It is an amenable number.

13497844 is a deficient number, since it is larger than the sum of its proper divisors (10149360).

13497844 is a wasteful number, since it uses less digits than its factorization.

13497844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714 (or 3712 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 13497844 is about 3673.9412080217. The cubic root of 13497844 is about 238.0974814290.

It can be divided in two parts, 13497 and 844, that added together give a palindrome (14341).

The spelling of 13497844 in words is "thirteen million, four hundred ninety-seven thousand, eight hundred forty-four".

Divisors: 1 2 4 1597 2113 3194 4226 6388 8452 3374461 6748922 13497844