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13408244 = 2231108131
BaseRepresentation
bin110011001001…
…011111110100
3221020012122122
4303021133310
511413030434
61155215112
7221653043
oct63113764
927205578
1013408244
1176288a3
1245a7498
132a15c95
141ad055a
15129cc2e
hexcc97f4

13408244 has 12 divisors (see below), whose sum is σ = 24221568. Its totient is φ = 6487800.

The previous prime is 13408229. The next prime is 13408249. The reversal of 13408244 is 44280431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13408249) 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, 53942 + ... + 54189.

It is an arithmetic number, because the mean of its divisors is an integer number (2018464).

Almost surely, 213408244 is an apocalyptic number.

It is an amenable number.

13408244 is a deficient number, since it is larger than the sum of its proper divisors (10813324).

13408244 is a wasteful number, since it uses less digits than its factorization.

13408244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108166 (or 108164 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 13408244 is about 3661.7269149952. The cubic root of 13408244 is about 237.5694733046.

Adding to 13408244 its reverse (44280431), we get a palindrome (57688675).

The spelling of 13408244 in words is "thirteen million, four hundred eight thousand, two hundred forty-four".

Divisors: 1 2 4 31 62 124 108131 216262 432524 3352061 6704122 13408244