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13118860 = 225655943
BaseRepresentation
bin110010000010…
…110110001100
3220200111200201
4302002312030
511324300420
61145103244
7216336256
oct62026614
926614621
1013118860
117450437
124487b24
132944351
141a56cd6
15124210a
hexc82d8c

13118860 has 12 divisors (see below), whose sum is σ = 27549648. Its totient is φ = 5247536.

The previous prime is 13118857. The next prime is 13118881. The reversal of 13118860 is 6881131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327952 + ... + 327991.

It is an arithmetic number, because the mean of its divisors is an integer number (2295804).

Almost surely, 213118860 is an apocalyptic number.

13118860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13118860 is an abundant number, since it is smaller than the sum of its proper divisors (14430788).

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

13118860 is a wasteful number, since it uses less digits than its factorization.

13118860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655952 (or 655950 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 13118860 is about 3621.9966869118. The cubic root of 13118860 is about 235.8479102423.

Adding to 13118860 its reverse (6881131), we get a palindrome (19999991).

The spelling of 13118860 in words is "thirteen million, one hundred eighteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 655943 1311886 2623772 3279715 6559430 13118860