Base | Representation |
---|---|
bin | 1001000011111… |
… | …1101001111111 |
3 | 2122112002012012 |
4 | 2100333221333 |
5 | 34212300341 |
6 | 3434401435 |
7 | 641034533 |
oct | 220775177 |
9 | 78462165 |
10 | 38009471 |
11 | 1a501095 |
12 | 1089027b |
13 | 7b4a816 |
14 | 5095bc3 |
15 | 350c0eb |
hex | 243fa7f |
38009471 has 8 divisors (see below), whose sum is σ = 39386544. Its totient is φ = 36650880.
The previous prime is 38009437. The next prime is 38009509. The reversal of 38009471 is 17490083.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-38009471 is a prime.
It is a super-3 number, since 3×380094713 (a number of 24 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38009071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365 + ... + 8726.
It is an arithmetic number, because the mean of its divisors is an integer number (4923318).
Almost surely, 238009471 is an apocalyptic number.
38009471 is a deficient number, since it is larger than the sum of its proper divisors (1377073).
38009471 is a wasteful number, since it uses less digits than its factorization.
38009471 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9241.
The product of its (nonzero) digits is 6048, while the sum is 32.
The square root of 38009471 is about 6165.1821546488. The cubic root of 38009471 is about 336.2254692975.
The spelling of 38009471 in words is "thirty-eight million, nine thousand, four hundred seventy-one".
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