Base | Representation |
---|---|
bin | 111001010100… |
… | …0100001110100 |
3 | 2002112201102112 |
4 | 1302220201310 |
5 | 30143103140 |
6 | 2552030152 |
7 | 513265361 |
oct | 162504164 |
9 | 62481375 |
10 | 30050420 |
11 | 15a65364 |
12 | a092358 |
13 | 62c1c1a |
14 | 3dc3468 |
15 | 2988c65 |
hex | 1ca8874 |
30050420 has 24 divisors (see below), whose sum is σ = 65850624. Its totient is φ = 11497376.
The previous prime is 30050413. The next prime is 30050431. The reversal of 30050420 is 2405003.
It is a junction number, because it is equal to n+sod(n) for n = 30050395 and 30050404.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32204 + ... + 33123.
It is an arithmetic number, because the mean of its divisors is an integer number (2743776).
Almost surely, 230050420 is an apocalyptic number.
It is an amenable number.
30050420 is an abundant number, since it is smaller than the sum of its proper divisors (35800204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30050420 is a wasteful number, since it uses less digits than its factorization.
30050420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65359 (or 65357 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 14.
The square root of 30050420 is about 5481.8263380009. The cubic root of 30050420 is about 310.8972272361.
Adding to 30050420 its reverse (2405003), we get a palindrome (32455423).
The spelling of 30050420 in words is "thirty million, fifty thousand, four hundred twenty".
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