Base | Representation |
---|---|
bin | 111001010100… |
… | …0111010111111 |
3 | 2002112210122012 |
4 | 1302220322333 |
5 | 30143131111 |
6 | 2552041435 |
7 | 513303152 |
oct | 162507277 |
9 | 62483565 |
10 | 30052031 |
11 | 15a66599 |
12 | a09327b |
13 | 62c2889 |
14 | 3dc3c99 |
15 | 298948b |
hex | 1ca8ebf |
30052031 has 2 divisors, whose sum is σ = 30052032. Its totient is φ = 30052030.
The previous prime is 30052027. The next prime is 30052037. The reversal of 30052031 is 13025003.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30052031 - 22 = 30052027 is a prime.
It is a super-2 number, since 2×300520312 = 1806249134449922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30051997 and 30052015.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30052037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15026015 + 15026016.
It is an arithmetic number, because the mean of its divisors is an integer number (15026016).
Almost surely, 230052031 is an apocalyptic number.
30052031 is a deficient number, since it is larger than the sum of its proper divisors (1).
30052031 is an equidigital number, since it uses as much as digits as its factorization.
30052031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 90, while the sum is 14.
The square root of 30052031 is about 5481.9732761114. The cubic root of 30052031 is about 310.9027828599.
Adding to 30052031 its reverse (13025003), we get a palindrome (43077034).
The spelling of 30052031 in words is "thirty million, fifty-two thousand, thirty-one".
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