Base | Representation |
---|---|
bin | 1001010010111… |
… | …0011100000111 |
3 | 2201100202211111 |
4 | 2110232130013 |
5 | 34440100102 |
6 | 3511345451 |
7 | 652250155 |
oct | 224563407 |
9 | 81322744 |
10 | 38987527 |
11 | 200099a7 |
12 | 11082287 |
13 | 8100a57 |
14 | 526c3d5 |
15 | 3651cd7 |
hex | 252e707 |
38987527 has 6 divisors (see below), whose sum is σ = 39493608. Its totient is φ = 38487852.
The previous prime is 38987521. The next prime is 38987549. The reversal of 38987527 is 72578983.
38987527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 38987527 - 23 = 38987519 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38987521) 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 5 ways as a sum of consecutive naturals, for example, 3118 + ... + 9364.
It is an arithmetic number, because the mean of its divisors is an integer number (6582268).
Almost surely, 238987527 is an apocalyptic number.
38987527 is a deficient number, since it is larger than the sum of its proper divisors (506081).
38987527 is an frugal number, since it uses more digits than its factorization.
38987527 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6405 (or 6326 counting only the distinct ones).
The product of its digits is 846720, while the sum is 49.
The square root of 38987527 is about 6243.9992793081. Note that the first 3 decimals coincide. The cubic root of 38987527 is about 339.0849878139.
The spelling of 38987527 in words is "thirty-eight million, nine hundred eighty-seven thousand, five hundred twenty-seven".
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