Base | Representation |
---|---|
bin | 1001000101101… |
… | …0101000110011 |
3 | 2122201200210101 |
4 | 2101122220303 |
5 | 34224314422 |
6 | 3441013231 |
7 | 642004663 |
oct | 221325063 |
9 | 78650711 |
10 | 38119987 |
11 | 1a577124 |
12 | 10924217 |
13 | 7b88c09 |
14 | 50c41a3 |
15 | 352ec27 |
hex | 245aa33 |
38119987 has 6 divisors (see below), whose sum is σ = 39390324. Its totient is φ = 36889380.
The previous prime is 38119981. The next prime is 38119997. The reversal of 38119987 is 78991183.
It is not a de Polignac number, because 38119987 - 211 = 38117939 is a prime.
It is a super-3 number, since 3×381199873 (a number of 24 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38119981) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18873 + ... + 20794.
It is an arithmetic number, because the mean of its divisors is an integer number (6565054).
Almost surely, 238119987 is an apocalyptic number.
38119987 is a deficient number, since it is larger than the sum of its proper divisors (1270337).
38119987 is an equidigital number, since it uses as much as digits as its factorization.
38119987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39729 (or 39698 counting only the distinct ones).
The product of its digits is 108864, while the sum is 46.
The square root of 38119987 is about 6174.1385633949. The cubic root of 38119987 is about 336.5510227043.
The spelling of 38119987 in words is "thirty-eight million, one hundred nineteen thousand, nine hundred eighty-seven".
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