Base | Representation |
---|---|
bin | 1001010010000… |
… | …0100111111111 |
3 | 2201020220012210 |
4 | 2110200213333 |
5 | 34431242233 |
6 | 3510231503 |
7 | 651623202 |
oct | 224404777 |
9 | 81226183 |
10 | 38930943 |
11 | 1aa80437 |
12 | 11055593 |
13 | 80b107c |
14 | 5255939 |
15 | 3640163 |
hex | 25209ff |
38930943 has 16 divisors (see below), whose sum is σ = 54933120. Its totient is φ = 24456096.
The previous prime is 38930929. The next prime is 38931007. The reversal of 38930943 is 34903983.
It is not a de Polignac number, because 38930943 - 25 = 38930911 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38930923) 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, 9496 + ... + 12962.
It is an arithmetic number, because the mean of its divisors is an integer number (3433320).
Almost surely, 238930943 is an apocalyptic number.
38930943 is a deficient number, since it is larger than the sum of its proper divisors (16002177).
38930943 is a wasteful number, since it uses less digits than its factorization.
38930943 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3686.
The product of its (nonzero) digits is 69984, while the sum is 39.
The square root of 38930943 is about 6239.4665637376. The cubic root of 38930943 is about 338.9208663108.
The spelling of 38930943 in words is "thirty-eight million, nine hundred thirty thousand, nine hundred forty-three".
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