Base | Representation |
---|---|
bin | 111010110011… |
… | …0111001001000 |
3 | 2011000100000111 |
4 | 1311212321020 |
5 | 30343031102 |
6 | 3020444104 |
7 | 523023553 |
oct | 165467110 |
9 | 64010014 |
10 | 30830152 |
11 | 16448171 |
12 | a3a9634 |
13 | 6505ac2 |
14 | 414769a |
15 | 2a8ecd7 |
hex | 1d66e48 |
30830152 has 16 divisors (see below), whose sum is σ = 57993660. Its totient is φ = 15365184.
The previous prime is 30830147. The next prime is 30830159. The reversal of 30830152 is 25103803.
It can be written as a sum of positive squares in 2 ways, for example, as 22221796 + 8608356 = 4714^2 + 2934^2 .
It is not an unprimeable number, because it can be changed into a prime (30830159) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3543 + ... + 8614.
Almost surely, 230830152 is an apocalyptic number.
It is an amenable number.
30830152 is a deficient number, since it is larger than the sum of its proper divisors (27163508).
30830152 is a wasteful number, since it uses less digits than its factorization.
30830152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12480 (or 12476 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 22.
The square root of 30830152 is about 5552.4906123288. The cubic root of 30830152 is about 313.5632968030.
Adding to 30830152 its reverse (25103803), we get a palindrome (55933955).
The spelling of 30830152 in words is "thirty million, eight hundred thirty thousand, one hundred fifty-two".
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