Base | Representation |
---|---|
bin | 1001001101110… |
… | …1000100000101 |
3 | 2200201211121112 |
4 | 2103131010011 |
5 | 34343413323 |
6 | 3500254405 |
7 | 646361333 |
oct | 223350405 |
9 | 80654545 |
10 | 38654213 |
11 | 1a901534 |
12 | 10b41405 |
13 | 8015120 |
14 | 51c2b53 |
15 | 35d8178 |
hex | 24dd105 |
38654213 has 8 divisors (see below), whose sum is σ = 42096600. Its totient is φ = 35278848.
The previous prime is 38654207. The next prime is 38654219. The reversal of 38654213 is 31245683.
It is an interprime number because it is at equal distance from previous prime (38654207) and next prime (38654219).
It can be written as a sum of positive squares in 4 ways, for example, as 917764 + 37736449 = 958^2 + 6143^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 38654213 - 220 = 37605637 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 38654213.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38654219) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 15548 + ... + 17861.
It is an arithmetic number, because the mean of its divisors is an integer number (5262075).
Almost surely, 238654213 is an apocalyptic number.
It is an amenable number.
38654213 is a deficient number, since it is larger than the sum of its proper divisors (3442387).
38654213 is a wasteful number, since it uses less digits than its factorization.
38654213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33511.
The product of its digits is 17280, while the sum is 32.
The square root of 38654213 is about 6217.2512415054. The cubic root of 38654213 is about 338.1159138170.
Adding to 38654213 its reverse (31245683), we get a palindrome (69899896).
The spelling of 38654213 in words is "thirty-eight million, six hundred fifty-four thousand, two hundred thirteen".
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