Base | Representation |
---|---|
bin | 1001010001001… |
… | …1000101111110 |
3 | 2201011002012000 |
4 | 2110103011332 |
5 | 34423004033 |
6 | 3505123130 |
7 | 651302463 |
oct | 224230576 |
9 | 81132160 |
10 | 38875518 |
11 | 1aa42830 |
12 | 110294a6 |
13 | 8091a86 |
14 | 523d66a |
15 | 362da13 |
hex | 251317e |
38875518 has 32 divisors (see below), whose sum is σ = 94245120. Its totient is φ = 11780280.
The previous prime is 38875517. The next prime is 38875523. The reversal of 38875518 is 81557883.
It is a happy number.
38875518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×388755182 = 3022611799536648, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38875511) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32130 + ... + 33317.
It is an arithmetic number, because the mean of its divisors is an integer number (2945160).
Almost surely, 238875518 is an apocalyptic number.
38875518 is an abundant number, since it is smaller than the sum of its proper divisors (55369602).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38875518 is a wasteful number, since it uses less digits than its factorization.
38875518 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65469 (or 65463 counting only the distinct ones).
The product of its digits is 268800, while the sum is 45.
The square root of 38875518 is about 6235.0234963471. The cubic root of 38875518 is about 338.7599522319.
It can be divided in two parts, 38875 and 518, that added together give a palindrome (39393).
The spelling of 38875518 in words is "thirty-eight million, eight hundred seventy-five thousand, five hundred eighteen".
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