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13118814 = 233832927
BaseRepresentation
bin110010000010…
…110101011110
3220200111122000
4302002311132
511324300224
61145103130
7216336162
oct62026536
926614560
1013118814
1174503a5
124487aa6
132944317
141a56ca2
1512420c9
hexc82d5e

13118814 has 32 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 4318776.

The previous prime is 13118779. The next prime is 13118837. The reversal of 13118814 is 41881131.

13118814 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3019 + ... + 5945.

It is an arithmetic number, because the mean of its divisors is an integer number (922320).

Almost surely, 213118814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13118814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14757120).

13118814 is an abundant number, since it is smaller than the sum of its proper divisors (16395426).

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

13118814 is a wasteful number, since it uses less digits than its factorization.

13118814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021 (or 3015 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 13118814 is about 3621.9903368176. The cubic root of 13118814 is about 235.8476345827.

Adding to 13118814 its reverse (41881131), we get a palindrome (54999945).

The spelling of 13118814 in words is "thirteen million, one hundred eighteen thousand, eight hundred fourteen".

Divisors: 1 2 3 6 9 18 27 54 83 166 249 498 747 1494 2241 2927 4482 5854 8781 17562 26343 52686 79029 158058 242941 485882 728823 1457646 2186469 4372938 6559407 13118814