Base | Representation |
---|---|
bin | 1001001111000… |
… | …1100010010101 |
3 | 2200220002122022 |
4 | 2103301202111 |
5 | 34404104234 |
6 | 3502142525 |
7 | 650160656 |
oct | 223614225 |
9 | 80802568 |
10 | 38738069 |
11 | 1a959537 |
12 | 10b81a45 |
13 | 8044346 |
14 | 520552d |
15 | 3602e2e |
hex | 24f1895 |
38738069 has 4 divisors (see below), whose sum is σ = 38836044. Its totient is φ = 38640096.
The previous prime is 38738033. The next prime is 38738101. The reversal of 38738069 is 96083783.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 14364100 + 24373969 = 3790^2 + 4937^2 .
It is a cyclic number.
It is not a de Polignac number, because 38738069 - 216 = 38672533 is a prime.
It is a super-2 number, since 2×387380692 = 3001275979697522, 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 (38738269) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48392 + ... + 49185.
It is an arithmetic number, because the mean of its divisors is an integer number (9709011).
Almost surely, 238738069 is an apocalyptic number.
It is an amenable number.
38738069 is a deficient number, since it is larger than the sum of its proper divisors (97975).
38738069 is an equidigital number, since it uses as much as digits as its factorization.
38738069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97974.
The product of its (nonzero) digits is 217728, while the sum is 44.
The square root of 38738069 is about 6223.9914042357. The cubic root of 38738069 is about 338.3602388001.
The spelling of 38738069 in words is "thirty-eight million, seven hundred thirty-eight thousand, sixty-nine".
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