Base | Representation |
---|---|
bin | 1001010000001… |
… | …0100100100100 |
3 | 2201000122100120 |
4 | 2110002210210 |
5 | 34413322334 |
6 | 3503441540 |
7 | 650601255 |
oct | 224024444 |
9 | 81018316 |
10 | 38807844 |
11 | 1a9a69a9 |
12 | 10bb62b0 |
13 | 806a02a |
14 | 5222b2c |
15 | 3618949 |
hex | 2502924 |
38807844 has 24 divisors (see below), whose sum is σ = 92658720. Its totient is φ = 12634944.
The previous prime is 38807843. The next prime is 38807869. The reversal of 38807844 is 44870883.
It is a junction number, because it is equal to n+sod(n) for n = 38807796 and 38807805.
It is not an unprimeable number, because it can be changed into a prime (38807843) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37089 + ... + 38120.
It is an arithmetic number, because the mean of its divisors is an integer number (3860780).
Almost surely, 238807844 is an apocalyptic number.
It is an amenable number.
38807844 is an abundant number, since it is smaller than the sum of its proper divisors (53850876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38807844 is a wasteful number, since it uses less digits than its factorization.
38807844 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75259 (or 75257 counting only the distinct ones).
The product of its (nonzero) digits is 172032, while the sum is 42.
The square root of 38807844 is about 6229.5942082932. The cubic root of 38807844 is about 338.5632684085.
The spelling of 38807844 in words is "thirty-eight million, eight hundred seven thousand, eight hundred forty-four".
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