Base | Representation |
---|---|
bin | 11100100110001110… |
… | …101111100011001001 |
3 | 2221020222002001120200 |
4 | 130212032233203021 |
5 | 1000341234420212 |
6 | 22034535442413 |
7 | 2134633065453 |
oct | 344616574311 |
9 | 87228061520 |
10 | 30706170057 |
11 | 12027918052 |
12 | 5b4b526409 |
13 | 2b847849c4 |
14 | 16b414b2d3 |
15 | beab196dc |
hex | 7263af8c9 |
30706170057 has 48 divisors (see below), whose sum is σ = 46479473040. Its totient is φ = 19516723200.
The previous prime is 30706170043. The next prime is 30706170067. The reversal of 30706170057 is 75007160703.
30706170057 is a `hidden beast` number, since 30 + 7 + 0 + 617 + 0 + 0 + 5 + 7 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 6043352121 + 24662817936 = 77739^2 + 157044^2 .
It is not a de Polignac number, because 30706170057 - 24 = 30706170041 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30706170037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3529569 + ... + 3538257.
It is an arithmetic number, because the mean of its divisors is an integer number (968322355).
Almost surely, 230706170057 is an apocalyptic number.
It is an amenable number.
30706170057 is a deficient number, since it is larger than the sum of its proper divisors (15773302983).
30706170057 is a wasteful number, since it uses less digits than its factorization.
30706170057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8954 (or 8951 counting only the distinct ones).
The product of its (nonzero) digits is 30870, while the sum is 36.
The spelling of 30706170057 in words is "thirty billion, seven hundred six million, one hundred seventy thousand, fifty-seven".
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