Base | Representation |
---|---|
bin | 111010001000… |
… | …1011100000100 |
3 | 2010100112212210 |
4 | 1310101130010 |
5 | 30300331012 |
6 | 3005143420 |
7 | 520035234 |
oct | 164213404 |
9 | 63315783 |
10 | 30480132 |
11 | 162291a1 |
12 | a25ab70 |
13 | 64126a7 |
14 | 4095cc4 |
15 | 2a2123c |
hex | 1d11704 |
30480132 has 12 divisors (see below), whose sum is σ = 71120336. Its totient is φ = 10160040.
The previous prime is 30480113. The next prime is 30480139. The reversal of 30480132 is 23108403.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (12).
It is a junction number, because it is equal to n+sod(n) for n = 30480099 and 30480108.
It is not an unprimeable number, because it can be changed into a prime (30480139) 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, 1269994 + ... + 1270017.
Almost surely, 230480132 is an apocalyptic number.
It is an amenable number.
30480132 is an abundant number, since it is smaller than the sum of its proper divisors (40640204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30480132 is a wasteful number, since it uses less digits than its factorization.
30480132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2540018 (or 2540016 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 30480132 is about 5520.8814513626. The cubic root of 30480132 is about 312.3721315794.
Adding to 30480132 its reverse (23108403), we get a palindrome (53588535).
The spelling of 30480132 in words is "thirty million, four hundred eighty thousand, one hundred thirty-two".
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