Base | Representation |
---|---|
bin | 1001000111111… |
… | …1011000011001 |
3 | 2200000100020112 |
4 | 2101333120121 |
5 | 34244123424 |
6 | 3444134105 |
7 | 643202525 |
oct | 221773031 |
9 | 80010215 |
10 | 38270489 |
11 | 1a66a204 |
12 | 10997335 |
13 | 7c0c57a |
14 | 5122d85 |
15 | 355e60e |
hex | 247f619 |
38270489 has 4 divisors (see below), whose sum is σ = 38292240. Its totient is φ = 38248740.
The previous prime is 38270447. The next prime is 38270513. The reversal of 38270489 is 98407283.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98407283 = 13 ⋅7569791.
It is a cyclic number.
It is not a de Polignac number, because 38270489 - 224 = 21493273 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38270429) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7979 + ... + 11840.
It is an arithmetic number, because the mean of its divisors is an integer number (9573060).
Almost surely, 238270489 is an apocalyptic number.
It is an amenable number.
38270489 is a deficient number, since it is larger than the sum of its proper divisors (21751).
38270489 is a wasteful number, since it uses less digits than its factorization.
38270489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21750.
The product of its (nonzero) digits is 96768, while the sum is 41.
The square root of 38270489 is about 6186.3146541378. The cubic root of 38270489 is about 336.9933548631.
The spelling of 38270489 in words is "thirty-eight million, two hundred seventy thousand, four hundred eighty-nine".
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