Base | Representation |
---|---|
bin | 1001010010111… |
… | …0000101010001 |
3 | 2201100200211100 |
4 | 2110232011101 |
5 | 34440023230 |
6 | 3511335013 |
7 | 652242666 |
oct | 224560521 |
9 | 81320740 |
10 | 38986065 |
11 | 20008898 |
12 | 11081469 |
13 | 81001a1 |
14 | 526ba6d |
15 | 3651660 |
hex | 252e151 |
38986065 has 24 divisors (see below), whose sum is σ = 69758208. Its totient is φ = 20121120.
The previous prime is 38986037. The next prime is 38986067. The reversal of 38986065 is 56068983.
38986065 is a `hidden beast` number, since 38 + 9 + 8 + 606 + 5 = 666.
It is not a de Polignac number, because 38986065 - 25 = 38986033 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 38986065.
It is not an unprimeable number, because it can be changed into a prime (38986067) 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 23 ways as a sum of consecutive naturals, for example, 12579 + ... + 15368.
It is an arithmetic number, because the mean of its divisors is an integer number (2906592).
Almost surely, 238986065 is an apocalyptic number.
It is an amenable number.
38986065 is a deficient number, since it is larger than the sum of its proper divisors (30772143).
38986065 is a wasteful number, since it uses less digits than its factorization.
38986065 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27989 (or 27986 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 45.
The square root of 38986065 is about 6243.8822058075. The cubic root of 38986065 is about 339.0807492921.
The spelling of 38986065 in words is "thirty-eight million, nine hundred eighty-six thousand, sixty-five".
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