Base | Representation |
---|---|
bin | 1001000101011… |
… | …1001101001001 |
3 | 2122200222111201 |
4 | 2101113031021 |
5 | 34223342204 |
6 | 3440424201 |
7 | 641616001 |
oct | 221271511 |
9 | 78628451 |
10 | 38105929 |
11 | 1a567604 |
12 | 10918061 |
13 | 7b826b4 |
14 | 50bd001 |
15 | 352a9a4 |
hex | 2457349 |
38105929 has 3 divisors (see below), whose sum is σ = 38112103. Its totient is φ = 38099756.
The previous prime is 38105923. The next prime is 38105939. The reversal of 38105929 is 92950183.
The square root of 38105929 is 6173.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92950183 = 31 ⋅2998393.
It can be written as a sum of positive squares in only one way, i.e., 308025 + 37797904 = 555^2 + 6148^2 .
It is not a de Polignac number, because 38105929 - 27 = 38105801 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38105923) by changing a digit.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3087 + ... + 9259.
Almost surely, 238105929 is an apocalyptic number.
38105929 is the 6173-rd square number.
38105929 is the 3087-th centered octagonal number.
It is an amenable number.
38105929 is a deficient number, since it is larger than the sum of its proper divisors (6174).
38105929 is an frugal number, since it uses more digits than its factorization.
38105929 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12346 (or 6173 counting only the distinct ones).
The product of its (nonzero) digits is 19440, while the sum is 37.
The cubic root of 38105929 is about 336.5096461949.
The spelling of 38105929 in words is "thirty-eight million, one hundred five thousand, nine hundred twenty-nine".
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