Base | Representation |
---|---|
bin | 1001001111110… |
… | …1010101011101 |
3 | 2200222112221020 |
4 | 2103331111131 |
5 | 34412131042 |
6 | 3503154353 |
7 | 650451606 |
oct | 223752535 |
9 | 80875836 |
10 | 38786397 |
11 | 1a991881 |
12 | 10ba59b9 |
13 | 8060340 |
14 | 5218dad |
15 | 36123ec |
hex | 24fd55d |
38786397 has 16 divisors (see below), whose sum is σ = 57200640. Its totient is φ = 23222592.
The previous prime is 38786389. The next prime is 38786399. The reversal of 38786397 is 79368783.
It is not a de Polignac number, because 38786397 - 23 = 38786389 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38786399) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11997 + ... + 14882.
It is an arithmetic number, because the mean of its divisors is an integer number (3575040).
Almost surely, 238786397 is an apocalyptic number.
38786397 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
It is an amenable number.
38786397 is a deficient number, since it is larger than the sum of its proper divisors (18414243).
38786397 is a wasteful number, since it uses less digits than its factorization.
38786397 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26932.
The product of its digits is 1524096, while the sum is 51.
The square root of 38786397 is about 6227.8725902189. The cubic root of 38786397 is about 338.5008883697.
The spelling of 38786397 in words is "thirty-eight million, seven hundred eighty-six thousand, three hundred ninety-seven".
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