[go: up one dir, main page]

Search a number
-
+
13225548 = 2237791993
BaseRepresentation
bin110010011100…
…111001001100
3220212221001010
4302130321030
511341204143
61151245220
7220262310
oct62347114
926787033
1013225548
117513606
124519810
132980a8b
141a83b40
151263a33
hexc9ce4c

13225548 has 48 divisors (see below), whose sum is σ = 35732480. Its totient is φ = 3729024.

The previous prime is 13225517. The next prime is 13225549. The reversal of 13225548 is 84552231.

13225548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13225549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5640 + ... + 7632.

Almost surely, 213225548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13225548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17866240).

13225548 is an abundant number, since it is smaller than the sum of its proper divisors (22506932).

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

13225548 is a wasteful number, since it uses less digits than its factorization.

13225548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086 (or 2084 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 13225548 is about 3636.6946531157. The cubic root of 13225548 is about 236.4855225223.

Adding to 13225548 its reverse (84552231), we get a palindrome (97777779).

The spelling of 13225548 in words is "thirteen million, two hundred twenty-five thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 79 84 158 237 316 474 553 948 1106 1659 1993 2212 3318 3986 5979 6636 7972 11958 13951 23916 27902 41853 55804 83706 157447 167412 314894 472341 629788 944682 1102129 1889364 2204258 3306387 4408516 6612774 13225548