Base | Representation |
---|---|
bin | 110010011100… |
… | …110111011000 |
3 | 220212220212211 |
4 | 302130313120 |
5 | 11341203212 |
6 | 1151244504 |
7 | 220262053 |
oct | 62346730 |
9 | 26786784 |
10 | 13225432 |
11 | 7513510 |
12 | 4519734 |
13 | 29809cc |
14 | 1a83a9a |
15 | 12639a7 |
hex | c9cdd8 |
13225432 has 32 divisors (see below), whose sum is σ = 27274320. Its totient is φ = 5962240.
The previous prime is 13225427. The next prime is 13225447. The reversal of 13225432 is 23452231.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 11508 + ... + 12604.
Almost surely, 213225432 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 13225432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13637160).
13225432 is an abundant number, since it is smaller than the sum of its proper divisors (14048888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13225432 is a wasteful number, since it uses less digits than its factorization.
13225432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1251 (or 1247 counting only the distinct ones).
The product of its digits is 1440, while the sum is 22.
The square root of 13225432 is about 3636.6787045325. The cubic root of 13225432 is about 236.4848311231.
13225432 divided by its sum of digits (22) gives a triangular number (601156 = T1096).
Adding to 13225432 its reverse (23452231), we get a palindrome (36677663).
The spelling of 13225432 in words is "thirteen million, two hundred twenty-five thousand, four hundred thirty-two".
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