Search a number
-
+
13225194 = 23481637
BaseRepresentation
bin110010011100…
…110011101010
3220212220120000
4302130303222
511341201234
61151243430
7220261263
oct62346352
926786500
1013225194
117513314
124519576
132980878
141a8396a
151263899
hexc9ccea

13225194 has 20 divisors (see below), whose sum is σ = 29634594. Its totient is φ = 4408344.

The previous prime is 13225193. The next prime is 13225213. The reversal of 13225194 is 49152231.

It can be written as a sum of positive squares in only one way, i.e., 10208025 + 3017169 = 3195^2 + 1737^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13225193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40657 + ... + 40980.

Almost surely, 213225194 is an apocalyptic number.

13225194 is an abundant number, since it is smaller than the sum of its proper divisors (16409400).

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

13225194 is an equidigital number, since it uses as much as digits as its factorization.

13225194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81651 (or 81642 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 13225194 is about 3636.6459822204. The cubic root of 13225194 is about 236.4834125499.

The spelling of 13225194 in words is "thirteen million, two hundred twenty-five thousand, one hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 81637 163274 244911 489822 734733 1469466 2204199 4408398 6612597 13225194