Base | Representation |
---|---|
bin | 111010010001… |
… | …0000000100101 |
3 | 2010110222222121 |
4 | 1310202000211 |
5 | 30310014010 |
6 | 3010425541 |
7 | 520440145 |
oct | 164420045 |
9 | 63428877 |
10 | 30548005 |
11 | 16275194 |
12 | a2922b1 |
13 | 6437557 |
14 | 40b2925 |
15 | 2a363da |
hex | 1d22025 |
30548005 has 4 divisors (see below), whose sum is σ = 36657612. Its totient is φ = 24438400.
The previous prime is 30548003. The next prime is 30548009. The reversal of 30548005 is 50084503.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50084503 = 7 ⋅7154929.
It can be written as a sum of positive squares in 2 ways, for example, as 12383361 + 18164644 = 3519^2 + 4262^2 .
It is not a de Polignac number, because 30548005 - 21 = 30548003 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 (30548003) 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, 3054796 + ... + 3054805.
It is an arithmetic number, because the mean of its divisors is an integer number (9164403).
Almost surely, 230548005 is an apocalyptic number.
It is an amenable number.
30548005 is a deficient number, since it is larger than the sum of its proper divisors (6109607).
30548005 is an equidigital number, since it uses as much as digits as its factorization.
30548005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6109606.
The product of its (nonzero) digits is 2400, while the sum is 25.
The square root of 30548005 is about 5527.0249682809. The cubic root of 30548005 is about 312.6038225696.
The spelling of 30548005 in words is "thirty million, five hundred forty-eight thousand, five".
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