Base | Representation |
---|---|
bin | 111001010100… |
… | …0101010101011 |
3 | 2002112202012112 |
4 | 1302220222223 |
5 | 30143112422 |
6 | 2552032535 |
7 | 513300131 |
oct | 162505253 |
9 | 62482175 |
10 | 30050987 |
11 | 15a6582a |
12 | a09274b |
13 | 62c2265 |
14 | 3dc3751 |
15 | 2988ee2 |
hex | 1ca8aab |
30050987 has 2 divisors, whose sum is σ = 30050988. Its totient is φ = 30050986.
The previous prime is 30050981. The next prime is 30051017. The reversal of 30050987 is 78905003.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30050987 - 214 = 30034603 is a prime.
It is not a weakly prime, because it can be changed into another prime (30050981) 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, 15025493 + 15025494.
It is an arithmetic number, because the mean of its divisors is an integer number (15025494).
Almost surely, 230050987 is an apocalyptic number.
30050987 is a deficient number, since it is larger than the sum of its proper divisors (1).
30050987 is an equidigital number, since it uses as much as digits as its factorization.
30050987 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7560, while the sum is 32.
The square root of 30050987 is about 5481.8780540979. The cubic root of 30050987 is about 310.8991825900.
The spelling of 30050987 in words is "thirty million, fifty thousand, nine hundred eighty-seven".
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