Search a number
-
+
13228074 = 23217139311
BaseRepresentation
bin110010011101…
…100000101010
3220220001111200
4302131200222
511341244244
61151305030
7220302546
oct62354052
926801450
1013228074
1175154a2
12451b176
132981c82
141a84a26
151264669
hexc9d82a

13228074 has 48 divisors (see below), whose sum is σ = 30663360. Its totient is φ = 4106880.

The previous prime is 13228069. The next prime is 13228097. The reversal of 13228074 is 47082231.

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 23 ways as a sum of consecutive naturals, for example, 42379 + ... + 42689.

It is an arithmetic number, because the mean of its divisors is an integer number (638820).

Almost surely, 213228074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13228074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15331680).

13228074 is an abundant number, since it is smaller than the sum of its proper divisors (17435286).

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

13228074 is a wasteful number, since it uses less digits than its factorization.

13228074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13228074 is about 3637.0419299205. The cubic root of 13228074 is about 236.5005773340.

The spelling of 13228074 in words is "thirteen million, two hundred twenty-eight thousand, seventy-four".

Divisors: 1 2 3 6 9 17 18 34 51 102 139 153 278 306 311 417 622 834 933 1251 1866 2363 2502 2799 4726 5287 5598 7089 10574 14178 15861 21267 31722 42534 43229 47583 86458 95166 129687 259374 389061 734893 778122 1469786 2204679 4409358 6614037 13228074