Base | Representation |
---|---|
bin | 1001010001000… |
… | …1101101101101 |
3 | 2201010210102210 |
4 | 2110101231231 |
5 | 34422313434 |
6 | 3505041033 |
7 | 651250143 |
oct | 224215555 |
9 | 81123383 |
10 | 38869869 |
11 | 1aa39565 |
12 | 11026179 |
13 | 808c32c |
14 | 523b593 |
15 | 362bee9 |
hex | 2511b6d |
38869869 has 8 divisors (see below), whose sum is σ = 53227360. Its totient is φ = 25212816.
The previous prime is 38869867. The next prime is 38869879. The reversal of 38869869 is 96896883.
38869869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38869869 - 21 = 38869867 is a prime.
It is a super-2 number, since 2×388698692 = 3021733432154322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38869867) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174979 + ... + 175200.
It is an arithmetic number, because the mean of its divisors is an integer number (6653420).
Almost surely, 238869869 is an apocalyptic number.
It is an amenable number.
38869869 is a deficient number, since it is larger than the sum of its proper divisors (14357491).
38869869 is a wasteful number, since it uses less digits than its factorization.
38869869 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 350219.
The product of its digits is 4478976, while the sum is 57.
The square root of 38869869 is about 6234.5704743791. The cubic root of 38869869 is about 338.7435430386.
The spelling of 38869869 in words is "thirty-eight million, eight hundred sixty-nine thousand, eight hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •