Base | Representation |
---|---|
bin | 11100011010010100… |
… | …100111010001011100 |
3 | 2220202001010210110212 |
4 | 130122110213101130 |
5 | 444434113214203 |
6 | 22003041351552 |
7 | 2126655654314 |
oct | 343224472134 |
9 | 86661123425 |
10 | 30506382428 |
11 | 11a3506a705 |
12 | 5ab46385b8 |
13 | 2b52273282 |
14 | 16957c2444 |
15 | bd83031d8 |
hex | 71a52745c |
30506382428 has 24 divisors (see below), whose sum is σ = 57905233344. Its totient is φ = 14005798400.
The previous prime is 30506382391. The next prime is 30506382461. The reversal of 30506382428 is 82428360503.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5468228 + ... + 5473803.
It is an arithmetic number, because the mean of its divisors is an integer number (2412718056).
Almost surely, 230506382428 is an apocalyptic number.
It is an amenable number.
30506382428 is a deficient number, since it is larger than the sum of its proper divisors (27398850916).
30506382428 is a wasteful number, since it uses less digits than its factorization.
30506382428 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10942093 (or 10942091 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 41.
The spelling of 30506382428 in words is "thirty billion, five hundred six million, three hundred eighty-two thousand, four hundred twenty-eight".
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