Base | Representation |
---|---|
bin | 100100001110000110… |
… | …100010010101110101 |
3 | 10201101101211202022102 |
4 | 210032012202111311 |
5 | 1114122133101323 |
6 | 25511051311445 |
7 | 2544522411623 |
oct | 441606422565 |
9 | 121341752272 |
10 | 38891300213 |
11 | 15548141527 |
12 | 765474b585 |
13 | 388a476a9c |
14 | 1c4d246513 |
15 | 10294d3328 |
hex | 90e1a2575 |
38891300213 has 4 divisors (see below), whose sum is σ = 38907003660. Its totient is φ = 38875596768.
The previous prime is 38891300207. The next prime is 38891300219. The reversal of 38891300213 is 31200319883.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (38891300207) and next prime (38891300219).
It can be written as a sum of positive squares in 2 ways, for example, as 12459694129 + 26431606084 = 111623^2 + 162578^2 .
It is a cyclic number.
It is not a de Polignac number, because 38891300213 - 214 = 38891283829 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38891300219) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7848008 + ... + 7852961.
It is an arithmetic number, because the mean of its divisors is an integer number (9726750915).
Almost surely, 238891300213 is an apocalyptic number.
It is an amenable number.
38891300213 is a deficient number, since it is larger than the sum of its proper divisors (15703447).
38891300213 is a wasteful number, since it uses less digits than its factorization.
38891300213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15703446.
The product of its (nonzero) digits is 31104, while the sum is 38.
The spelling of 38891300213 in words is "thirty-eight billion, eight hundred ninety-one million, three hundred thousand, two hundred thirteen".
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