Search a number
-
+
12818274 = 2371916063
BaseRepresentation
bin110000111001…
…011101100010
3220010020100220
4300321131202
511240141044
61134423510
7213645030
oct60713542
926106326
1012818274
117265617
124361b96
13286a5a1
1419b9550
1511d3019
hexc39762

12818274 has 32 divisors (see below), whose sum is σ = 30842880. Its totient is φ = 3469392.

The previous prime is 12818249. The next prime is 12818297. The reversal of 12818274 is 47281821.

It is a happy number.

12818274 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

12818274 is strictly pandigital in base 8.

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, 7234 + ... + 8829.

It is an arithmetic number, because the mean of its divisors is an integer number (963840).

Almost surely, 212818274 is an apocalyptic number.

12818274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12818274 is an abundant number, since it is smaller than the sum of its proper divisors (18024606).

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

12818274 is a wasteful number, since it uses less digits than its factorization.

12818274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16094.

The product of its digits is 7168, while the sum is 33.

The square root of 12818274 is about 3580.2617222767. The cubic root of 12818274 is about 234.0326859155.

The spelling of 12818274 in words is "twelve million, eight hundred eighteen thousand, two hundred seventy-four".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 16063 32126 48189 96378 112441 224882 305197 337323 610394 674646 915591 1831182 2136379 4272758 6409137 12818274