Base | Representation |
---|---|
bin | 11100101110101100… |
… | …010010011010001001 |
3 | 2221121212012111210000 |
4 | 130232230102122021 |
5 | 1001134110221440 |
6 | 22101010313213 |
7 | 2141305542033 |
oct | 345654223211 |
9 | 87555174700 |
10 | 30848132745 |
11 | 1209aa6a791 |
12 | 5b8ab88809 |
13 | 2ba7ccb4b1 |
14 | 16c8d42c53 |
15 | c0830c730 |
hex | 72eb12689 |
30848132745 has 40 divisors (see below), whose sum is σ = 55374107976. Its totient is φ = 16429734144.
The previous prime is 30848132701. The next prime is 30848132759. The reversal of 30848132745 is 54723184803.
It can be written as a sum of positive squares in 4 ways, for example, as 6245582841 + 24602549904 = 79029^2 + 156852^2 .
It is not a de Polignac number, because 30848132745 - 26 = 30848132681 is a prime.
It is a super-3 number, since 3×308481327453 (a number of 32 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 30848132745.
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 39 ways as a sum of consecutive naturals, for example, 244909 + ... + 348821.
Almost surely, 230848132745 is an apocalyptic number.
It is an amenable number.
30848132745 is a deficient number, since it is larger than the sum of its proper divisors (24525975231).
30848132745 is a wasteful number, since it uses less digits than its factorization.
30848132745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104663 (or 104654 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
The spelling of 30848132745 in words is "thirty billion, eight hundred forty-eight million, one hundred thirty-two thousand, seven hundred forty-five".
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