Base | Representation |
---|---|
bin | 100011111010… |
… | …1011001100100 |
3 | 1022102201012112 |
4 | 1013311121210 |
5 | 14310042243 |
6 | 1511340152 |
7 | 316026503 |
oct | 107653144 |
9 | 38381175 |
10 | 18830948 |
11 | a6a1a74 |
12 | 6381658 |
13 | 3b94296 |
14 | 270283a |
15 | 19be818 |
hex | 11f5664 |
18830948 has 6 divisors (see below), whose sum is σ = 32954166. Its totient is φ = 9415472.
The previous prime is 18830941. The next prime is 18830983. The reversal of 18830948 is 84903881.
It can be written as a sum of positive squares in only one way, i.e., 11035684 + 7795264 = 3322^2 + 2792^2 .
It is not an unprimeable number, because it can be changed into a prime (18830941) 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 as a sum of consecutive naturals, namely, 2353865 + ... + 2353872.
It is an arithmetic number, because the mean of its divisors is an integer number (5492361).
Almost surely, 218830948 is an apocalyptic number.
It is an amenable number.
18830948 is a deficient number, since it is larger than the sum of its proper divisors (14123218).
18830948 is a wasteful number, since it uses less digits than its factorization.
18830948 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4707741 (or 4707739 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 41.
The square root of 18830948 is about 4339.4640222037. The cubic root of 18830948 is about 266.0464049290.
The spelling of 18830948 in words is "eighteen million, eight hundred thirty thousand, nine hundred forty-eight".
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