Base | Representation |
---|---|
bin | 111001100111… |
… | …0000000100101 |
3 | 2002211112000111 |
4 | 1303032000211 |
5 | 30213011231 |
6 | 2555213021 |
7 | 514505065 |
oct | 163160045 |
9 | 62745014 |
10 | 30203941 |
11 | 1605a739 |
12 | a147171 |
13 | 6346a71 |
14 | 40233a5 |
15 | 29b94b1 |
hex | 1cce025 |
30203941 has 2 divisors, whose sum is σ = 30203942. Its totient is φ = 30203940.
The previous prime is 30203911. The next prime is 30203959. The reversal of 30203941 is 14930203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 28890625 + 1313316 = 5375^2 + 1146^2 .
It is a cyclic number.
It is not a de Polignac number, because 30203941 - 27 = 30203813 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30203911) by changing a digit.
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 as a sum of consecutive naturals, namely, 15101970 + 15101971.
It is an arithmetic number, because the mean of its divisors is an integer number (15101971).
Almost surely, 230203941 is an apocalyptic number.
It is an amenable number.
30203941 is a deficient number, since it is larger than the sum of its proper divisors (1).
30203941 is an equidigital number, since it uses as much as digits as its factorization.
30203941 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 22.
The square root of 30203941 is about 5495.8112231044. The cubic root of 30203941 is about 311.4257634285.
The spelling of 30203941 in words is "thirty million, two hundred three thousand, nine hundred forty-one".
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