Base | Representation |
---|---|
bin | 1001001000011… |
… | …0100101010001 |
3 | 2200001211200222 |
4 | 2102012211101 |
5 | 34301044420 |
6 | 3444522425 |
7 | 643354523 |
oct | 222064521 |
9 | 80054628 |
10 | 38299985 |
11 | 1a68a389 |
12 | 109b0415 |
13 | 7c1cb19 |
14 | 512da13 |
15 | 3568225 |
hex | 2486951 |
38299985 has 4 divisors (see below), whose sum is σ = 45959988. Its totient is φ = 30639984.
The previous prime is 38299957. The next prime is 38299999. The reversal of 38299985 is 58999283.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 23338561 + 14961424 = 4831^2 + 3868^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-38299985 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3829994 + ... + 3830003.
It is an arithmetic number, because the mean of its divisors is an integer number (11489997).
Almost surely, 238299985 is an apocalyptic number.
It is an amenable number.
38299985 is a deficient number, since it is larger than the sum of its proper divisors (7660003).
38299985 is an equidigital number, since it uses as much as digits as its factorization.
38299985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7660002.
The product of its digits is 1399680, while the sum is 53.
The square root of 38299985 is about 6188.6981668199. The cubic root of 38299985 is about 337.0799089652.
The spelling of 38299985 in words is "thirty-eight million, two hundred ninety-nine thousand, nine hundred eighty-five".
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