Base | Representation |
---|---|
bin | 111001110011… |
… | …0000100010111 |
3 | 2010000112012100 |
4 | 1303212010113 |
5 | 30224134422 |
6 | 3001253143 |
7 | 515365305 |
oct | 163460427 |
9 | 63015170 |
10 | 30302487 |
11 | 16117786 |
12 | a1941b3 |
13 | 637c887 |
14 | 404b275 |
15 | 29d87ac |
hex | 1ce6117 |
30302487 has 12 divisors (see below), whose sum is σ = 44788744. Its totient is φ = 19731600.
The previous prime is 30302479. The next prime is 30302501. The reversal of 30302487 is 78420303.
It is not a de Polignac number, because 30302487 - 23 = 30302479 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30302487.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30302287) 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 11 ways as a sum of consecutive naturals, for example, 38764 + ... + 39537.
Almost surely, 230302487 is an apocalyptic number.
30302487 is a deficient number, since it is larger than the sum of its proper divisors (14486257).
30302487 is a wasteful number, since it uses less digits than its factorization.
30302487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78350 (or 78347 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 27.
The square root of 30302487 is about 5504.7694774622. The cubic root of 30302487 is about 311.7640906535.
The spelling of 30302487 in words is "thirty million, three hundred two thousand, four hundred eighty-seven".
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