Base | Representation |
---|---|
bin | 1001000100000… |
… | …1101111010100 |
3 | 2122112111220020 |
4 | 2101001233110 |
5 | 34213034004 |
6 | 3434505140 |
7 | 641101443 |
oct | 221015724 |
9 | 78474806 |
10 | 38018004 |
11 | 1a507542 |
12 | 108951b0 |
13 | 7b5167b |
14 | 5098d5a |
15 | 350e8d9 |
hex | 2441bd4 |
38018004 has 12 divisors (see below), whose sum is σ = 88708704. Its totient is φ = 12672664.
The previous prime is 38017999. The next prime is 38018009. The reversal of 38018004 is 40081083.
It is an interprime number because it is at equal distance from previous prime (38017999) and next prime (38018009).
It is a tau number, because it is divible by the number of its divisors (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38018009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1584072 + ... + 1584095.
It is an arithmetic number, because the mean of its divisors is an integer number (7392392).
Almost surely, 238018004 is an apocalyptic number.
It is an amenable number.
38018004 is an abundant number, since it is smaller than the sum of its proper divisors (50690700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38018004 is a wasteful number, since it uses less digits than its factorization.
38018004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3168174 (or 3168172 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 24.
The square root of 38018004 is about 6165.8741472722. The cubic root of 38018004 is about 336.2506279153.
Adding to 38018004 its reverse (40081083), we get a palindrome (78099087).
The spelling of 38018004 in words is "thirty-eight million, eighteen thousand, four".
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