Base | Representation |
---|---|
bin | 1001000110110… |
… | …1000010111011 |
3 | 2122212112012222 |
4 | 2101231002323 |
5 | 34234223022 |
6 | 3442354255 |
7 | 642440546 |
oct | 221550273 |
9 | 78775188 |
10 | 38195387 |
11 | 1a61883a |
12 | 1095b98b |
13 | 7bb4329 |
14 | 510385d |
15 | 3547242 |
hex | 246d0bb |
38195387 has 12 divisors (see below), whose sum is σ = 40373424. Its totient is φ = 36128400.
The previous prime is 38195371. The next prime is 38195389. The reversal of 38195387 is 78359183.
It is a happy number.
38195387 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 38195387 - 24 = 38195371 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38195389) 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 11 ways as a sum of consecutive naturals, for example, 54137 + ... + 54837.
It is an arithmetic number, because the mean of its divisors is an integer number (3364452).
Almost surely, 238195387 is an apocalyptic number.
38195387 is a deficient number, since it is larger than the sum of its proper divisors (2178037).
38195387 is a wasteful number, since it uses less digits than its factorization.
38195387 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 850 (or 827 counting only the distinct ones).
The product of its digits is 181440, while the sum is 44.
The square root of 38195387 is about 6180.2416619417. The cubic root of 38195387 is about 336.7727719454.
The spelling of 38195387 in words is "thirty-eight million, one hundred ninety-five thousand, three hundred eighty-seven".
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