Base | Representation |
---|---|
bin | 1001001011100… |
… | …0101111111101 |
3 | 2200110021120111 |
4 | 2102320233331 |
5 | 34324133334 |
6 | 3453150021 |
7 | 645201562 |
oct | 222705775 |
9 | 80407514 |
10 | 38505469 |
11 | 1a80a802 |
12 | 10a8b311 |
13 | 7c92502 |
14 | 5184869 |
15 | 35a9064 |
hex | 24b8bfd |
38505469 has 8 divisors (see below), whose sum is σ = 39105920. Its totient is φ = 37908000.
The previous prime is 38505463. The next prime is 38505497. The reversal of 38505469 is 96450583.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 38505469 - 223 = 30116861 is a prime.
It is a super-2 number, since 2×385054692 = 2965342285819922, which contains 22 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 (38505463) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47074 + ... + 47884.
It is an arithmetic number, because the mean of its divisors is an integer number (4888240).
Almost surely, 238505469 is an apocalyptic number.
It is an amenable number.
38505469 is a deficient number, since it is larger than the sum of its proper divisors (600451).
38505469 is an equidigital number, since it uses as much as digits as its factorization.
38505469 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1491.
The product of its (nonzero) digits is 129600, while the sum is 40.
The square root of 38505469 is about 6205.2775119248. The cubic root of 38505469 is about 337.6816587665.
The spelling of 38505469 in words is "thirty-eight million, five hundred five thousand, four hundred sixty-nine".
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