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13545028 = 227483751
BaseRepresentation
bin110011101010…
…111001000100
3221111011021201
4303222321010
511431420103
61202152244
7223062610
oct63527104
927434251
1013545028
117711642
124652684
132a63313
141b28340
1512c851d
hexceae44

13545028 has 12 divisors (see below), whose sum is σ = 27090112. Its totient is φ = 5805000.

The previous prime is 13545011. The next prime is 13545029. The reversal of 13545028 is 82054531.

13545028 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13545028 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 483751 = 13545028 / (1 + 3 + 5 + 4 + 5 + 0 + 2 + 8).

13545028 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 13544987 and 13545005.

It is not an unprimeable number, because it can be changed into a prime (13545029) 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, 241848 + ... + 241903.

Almost surely, 213545028 is an apocalyptic number.

It is an amenable number.

13545028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13545028 is a wasteful number, since it uses less digits than its factorization.

13545028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483762 (or 483760 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 13545028 is about 3680.3570478963. The cubic root of 13545028 is about 238.3745954717.

Adding to 13545028 its reverse (82054531), we get a palindrome (95599559).

The spelling of 13545028 in words is "thirteen million, five hundred forty-five thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 483751 967502 1935004 3386257 6772514 13545028