Base | Representation |
---|---|
bin | 1001010010001… |
… | …1110000000000 |
3 | 2201021112202220 |
4 | 2110203300000 |
5 | 34432144434 |
6 | 3510411040 |
7 | 652005420 |
oct | 224436000 |
9 | 81245686 |
10 | 38943744 |
11 | 1aa8a014 |
12 | 11060a80 |
13 | 80b6b48 |
14 | 525a480 |
15 | 3643d49 |
hex | 2523c00 |
38943744 has 88 divisors (see below), whose sum is σ = 118693248. Its totient is φ = 11120640.
The previous prime is 38943743. The next prime is 38943791. The reversal of 38943744 is 44734983.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a junction number, because it is equal to n+sod(n) for n = 38943696 and 38943705.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38943743) 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, 20599 + ... + 22409.
Almost surely, 238943744 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 38943744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59346624).
38943744 is an abundant number, since it is smaller than the sum of its proper divisors (79749504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38943744 is a wasteful number, since it uses less digits than its factorization.
38943744 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1841 (or 1823 counting only the distinct ones).
The product of its digits is 290304, while the sum is 42.
The square root of 38943744 is about 6240.4922882734. The cubic root of 38943744 is about 338.9580094352.
The spelling of 38943744 in words is "thirty-eight million, nine hundred forty-three thousand, seven hundred forty-four".
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