Base | Representation |
---|---|
bin | 111010000110… |
… | …010100000000 |
3 | 1001122202220210 |
4 | 322012110000 |
5 | 12344331313 |
6 | 1302234120 |
7 | 243311640 |
oct | 72062400 |
9 | 31582823 |
10 | 15230208 |
11 | 8662754 |
12 | 5125940 |
13 | 3203376 |
14 | 2046520 |
15 | 150c9c3 |
hex | e86500 |
15230208 has 72 divisors (see below), whose sum is σ = 46341568. Its totient is φ = 4349952.
The previous prime is 15230203. The next prime is 15230219. The reversal of 15230208 is 80203251.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a nialpdrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15230203) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3960 + ... + 6792.
Almost surely, 215230208 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 15230208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23170784).
15230208 is an abundant number, since it is smaller than the sum of its proper divisors (31111360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15230208 is an equidigital number, since it uses as much as digits as its factorization.
15230208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2859 (or 2845 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 15230208 is about 3902.5899092782. The cubic root of 15230208 is about 247.8764559818.
Adding to 15230208 its reverse (80203251), we get a palindrome (95433459).
The spelling of 15230208 in words is "fifteen million, two hundred thirty thousand, two hundred eight".
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