Base | Representation |
---|---|
bin | 11011111100100100… |
… | …000100011100111001 |
3 | 2212110020200111220212 |
4 | 123330210010130321 |
5 | 442423310231000 |
6 | 21441324400505 |
7 | 2111414201642 |
oct | 337444043471 |
9 | 85406614825 |
10 | 30007117625 |
11 | 117a9265671 |
12 | 59953a6135 |
13 | 2aa29b7a04 |
14 | 164937c6c9 |
15 | ba9582c35 |
hex | 6fc904739 |
30007117625 has 16 divisors (see below), whose sum is σ = 37869670800. Its totient is φ = 23735958400.
The previous prime is 30007117603. The next prime is 30007117649. The reversal of 30007117625 is 52671170003.
It can be written as a sum of positive squares in 8 ways, for example, as 7516716601 + 22490401024 = 86699^2 + 149968^2 .
It is not a de Polignac number, because 30007117625 - 28 = 30007117369 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30007117591 and 30007117600.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337510 + ... + 1359759.
It is an arithmetic number, because the mean of its divisors is an integer number (2366854425).
Almost surely, 230007117625 is an apocalyptic number.
It is an amenable number.
30007117625 is a deficient number, since it is larger than the sum of its proper divisors (7862553175).
30007117625 is an equidigital number, since it uses as much as digits as its factorization.
30007117625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2697373 (or 2697363 counting only the distinct ones).
The product of its (nonzero) digits is 8820, while the sum is 32.
Adding to 30007117625 its reverse (52671170003), we get a palindrome (82678287628).
The spelling of 30007117625 in words is "thirty billion, seven million, one hundred seventeen thousand, six hundred twenty-five".
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