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13427538 = 232397301
BaseRepresentation
bin110011001110…
…001101010010
3221021012010020
4303032031102
511414140123
61155444310
7222063225
oct63161522
927235106
1013427538
117641343
1245b6696
132a219b7
141ad75bc
1512a37e3
hexcce352

13427538 has 16 divisors (see below), whose sum is σ = 28022976. Its totient is φ = 4281200.

The previous prime is 13427527. The next prime is 13427543. The reversal of 13427538 is 83572431.

13427538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13427499 and 13427508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48513 + ... + 48788.

It is an arithmetic number, because the mean of its divisors is an integer number (1751436).

Almost surely, 213427538 is an apocalyptic number.

13427538 is an abundant number, since it is smaller than the sum of its proper divisors (14595438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13427538 is a wasteful number, since it uses less digits than its factorization.

13427538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97329.

The product of its digits is 20160, while the sum is 33.

The square root of 13427538 is about 3664.3605171981. The cubic root of 13427538 is about 237.6833701130.

Adding to 13427538 its reverse (83572431), we get a palindrome (96999969).

It can be divided in two parts, 134 and 27538, that added together give a palindrome (27672).

The spelling of 13427538 in words is "thirteen million, four hundred twenty-seven thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 23 46 69 138 97301 194602 291903 583806 2237923 4475846 6713769 13427538