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13017628 = 22131391801
BaseRepresentation
bin110001101010…
…001000011100
3220111100211101
4301222020130
511313031003
61143002444
7215435161
oct61521034
926440741
1013017628
117391378
124439424
13290a250
141a2c068
15122211d
hexc6a21c

13017628 has 24 divisors (see below), whose sum is σ = 24723440. Its totient is φ = 5961600.

The previous prime is 13017593. The next prime is 13017629. The reversal of 13017628 is 82671031.

It is a junction number, because it is equal to n+sod(n) for n = 13017596 and 13017605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13017629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6328 + ... + 8128.

Almost surely, 213017628 is an apocalyptic number.

It is an amenable number.

13017628 is a deficient number, since it is larger than the sum of its proper divisors (11705812).

13017628 is a wasteful number, since it uses less digits than its factorization.

13017628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 13017628 is about 3607.9950110830. The cubic root of 13017628 is about 235.2397010974.

Adding to 13017628 its reverse (82671031), we get a palindrome (95688659).

The spelling of 13017628 in words is "thirteen million, seventeen thousand, six hundred twenty-eight".

Divisors: 1 2 4 13 26 52 139 278 556 1801 1807 3602 3614 7204 7228 23413 46826 93652 250339 500678 1001356 3254407 6508814 13017628