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13116860 = 22517173223
BaseRepresentation
bin110010000010…
…010110111100
3220200101221122
4302002112330
511324214420
61145050112
7216330401
oct62022674
926611848
1013116860
117449989
124486938
132943473
141a562a8
151241725
hexc825bc

13116860 has 48 divisors (see below), whose sum is σ = 29465856. Its totient is φ = 4887552.

The previous prime is 13116853. The next prime is 13116919. The reversal of 13116860 is 6861131.

13116860 = 773 + 783 + ... + 963.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58709 + ... + 58931.

It is an arithmetic number, because the mean of its divisors is an integer number (613872).

Almost surely, 213116860 is an apocalyptic number.

13116860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13116860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14732928).

13116860 is an abundant number, since it is smaller than the sum of its proper divisors (16348996).

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

13116860 is a wasteful number, since it uses less digits than its factorization.

13116860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13116860 is about 3621.7205855781. The cubic root of 13116860 is about 235.8359244500.

Adding to 13116860 its reverse (6861131), we get a palindrome (19977991).

The spelling of 13116860 in words is "thirteen million, one hundred sixteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 173 223 340 346 446 692 865 892 1115 1730 2230 2941 3460 3791 4460 5882 7582 11764 14705 15164 18955 29410 37910 38579 58820 75820 77158 154316 192895 385790 655843 771580 1311686 2623372 3279215 6558430 13116860