Base | Representation |
---|---|
bin | 1001000100011… |
… | …1100111010111 |
3 | 2122120201220121 |
4 | 2101013213113 |
5 | 34214321241 |
6 | 3435212411 |
7 | 641231554 |
oct | 221074727 |
9 | 78521817 |
10 | 38042071 |
11 | 1a523631 |
12 | 108a7107 |
13 | 7b5c602 |
14 | 50a3a2b |
15 | 3516ad1 |
hex | 24479d7 |
38042071 has 4 divisors (see below), whose sum is σ = 38469600. Its totient is φ = 37614544.
The previous prime is 38042063. The next prime is 38042077. The reversal of 38042071 is 17024083.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17024083 = 1327 ⋅12829.
It is a cyclic number.
It is not a de Polignac number, because 38042071 - 23 = 38042063 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 (38042077) 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, 213631 + ... + 213808.
It is an arithmetic number, because the mean of its divisors is an integer number (9617400).
Almost surely, 238042071 is an apocalyptic number.
38042071 is a deficient number, since it is larger than the sum of its proper divisors (427529).
38042071 is an equidigital number, since it uses as much as digits as its factorization.
38042071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 427528.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 38042071 is about 6167.8254676993. The cubic root of 38042071 is about 336.3215665582.
The spelling of 38042071 in words is "thirty-eight million, forty-two thousand, seventy-one".
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