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13540936 = 2315710781
BaseRepresentation
bin110011101001…
…111001001000
3221110221200011
4303221321020
511431302221
61202121304
7223044643
oct63517110
927427604
1013540936
117709562
124650234
132a614b6
141b26a5a
1512c71e1
hexce9e48

13540936 has 16 divisors (see below), whose sum is σ = 25553340. Its totient is φ = 6726720.

The previous prime is 13540931. The next prime is 13540949. The reversal of 13540936 is 63904531.

13540936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12916836 + 624100 = 3594^2 + 790^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13540898 and 13540907.

It is not an unprimeable number, because it can be changed into a prime (13540931) 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, 4135 + ... + 6646.

Almost surely, 213540936 is an apocalyptic number.

It is an amenable number.

13540936 is a deficient number, since it is larger than the sum of its proper divisors (12012404).

13540936 is a wasteful number, since it uses less digits than its factorization.

13540936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10944 (or 10940 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 13540936 is about 3679.8010815804. The cubic root of 13540936 is about 238.3505884563.

The spelling of 13540936 in words is "thirteen million, five hundred forty thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 157 314 628 1256 10781 21562 43124 86248 1692617 3385234 6770468 13540936