Base | Representation |
---|---|
bin | 1001001111001… |
… | …1101110010100 |
3 | 2200220112221010 |
4 | 2103303232110 |
5 | 34404401103 |
6 | 3502252220 |
7 | 650226045 |
oct | 223635624 |
9 | 80815833 |
10 | 38747028 |
11 | 1a965241 |
12 | 10b87070 |
13 | 8048448 |
14 | 52088cc |
15 | 3605903 |
hex | 24f3b94 |
38747028 has 24 divisors (see below), whose sum is σ = 92117088. Its totient is φ = 12671776.
The previous prime is 38747021. The next prime is 38747039. The reversal of 38747028 is 82074783.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38747021) 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, 29826 + ... + 31097.
It is an arithmetic number, because the mean of its divisors is an integer number (3838212).
Almost surely, 238747028 is an apocalyptic number.
It is an amenable number.
38747028 is an abundant number, since it is smaller than the sum of its proper divisors (53370060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38747028 is a wasteful number, since it uses less digits than its factorization.
38747028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60983 (or 60981 counting only the distinct ones).
The product of its (nonzero) digits is 75264, while the sum is 39.
The square root of 38747028 is about 6224.7110776324. The cubic root of 38747028 is about 338.3863211166.
The spelling of 38747028 in words is "thirty-eight million, seven hundred forty-seven thousand, twenty-eight".
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