Base | Representation |
---|---|
bin | 111001101010… |
… | …0100100101110 |
3 | 2002212212220101 |
4 | 1303110210232 |
5 | 30214341310 |
6 | 2555541314 |
7 | 514646350 |
oct | 163244456 |
9 | 62785811 |
10 | 30230830 |
11 | 16078963 |
12 | a15a83a |
13 | 6356086 |
14 | 402d0d0 |
15 | 29c243a |
hex | 1cd492e |
30230830 has 16 divisors (see below), whose sum is σ = 62189280. Its totient is φ = 10364832.
The previous prime is 30230819. The next prime is 30230839. The reversal of 30230830 is 3803203.
It is a junction number, because it is equal to n+sod(n) for n = 30230798 and 30230807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30230839) 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 7 ways as a sum of consecutive naturals, for example, 215865 + ... + 216004.
It is an arithmetic number, because the mean of its divisors is an integer number (3886830).
Almost surely, 230230830 is an apocalyptic number.
30230830 is an abundant number, since it is smaller than the sum of its proper divisors (31958450).
30230830 is a wasteful number, since it uses less digits than its factorization.
30230830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 431883.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 30230830 is about 5498.2569965399. The cubic root of 30230830 is about 311.5181514122.
It can be divided in two parts, 30 and 230830, that added together give a triangular number (230860 = T679).
The spelling of 30230830 in words is "thirty million, two hundred thirty thousand, eight hundred thirty".
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