Base | Representation |
---|---|
bin | 111010001001… |
… | …1000000111101 |
3 | 2010100212201221 |
4 | 1310103000331 |
5 | 30301032324 |
6 | 3005233341 |
7 | 520063120 |
oct | 164230075 |
9 | 63325657 |
10 | 30486589 |
11 | 16233031 |
12 | a262851 |
13 | 6415603 |
14 | 40983b7 |
15 | 2a230e4 |
hex | 1d1303d |
30486589 has 4 divisors (see below), whose sum is σ = 34841824. Its totient is φ = 26131356.
The previous prime is 30486581. The next prime is 30486623. The reversal of 30486589 is 98568403.
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.
It is a cyclic number.
It is not a de Polignac number, because 30486589 - 23 = 30486581 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30486581) 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, 2177607 + ... + 2177620.
It is an arithmetic number, because the mean of its divisors is an integer number (8710456).
Almost surely, 230486589 is an apocalyptic number.
It is an amenable number.
30486589 is a deficient number, since it is larger than the sum of its proper divisors (4355235).
30486589 is an equidigital number, since it uses as much as digits as its factorization.
30486589 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4355234.
The product of its (nonzero) digits is 207360, while the sum is 43.
The square root of 30486589 is about 5521.4662002044. The cubic root of 30486589 is about 312.3941879629.
The spelling of 30486589 in words is "thirty million, four hundred eighty-six thousand, five hundred eighty-nine".
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