Base | Representation |
---|---|
bin | 11100011001111100… |
… | …011110000000100001 |
3 | 2220201121020020011112 |
4 | 130121330132000201 |
5 | 444431003144100 |
6 | 22002253553105 |
7 | 2126551113251 |
oct | 343174360041 |
9 | 86647206145 |
10 | 30500053025 |
11 | 11a315372a2 |
12 | 5ab24a5795 |
13 | 2b50b68370 |
14 | 1694a15961 |
15 | bd79a2b35 |
hex | 719f1e021 |
30500053025 has 48 divisors (see below), whose sum is σ = 41277826800. Its totient is φ = 22220943360.
The previous prime is 30500053013. The next prime is 30500053027. The reversal of 30500053025 is 52035000503.
It is a happy number.
It can be written as a sum of positive squares in 24 ways, for example, as 29373846544 + 1126206481 = 171388^2 + 33559^2 .
It is not a de Polignac number, because 30500053025 - 28 = 30500052769 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30500053027) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17845871 + ... + 17847579.
It is an arithmetic number, because the mean of its divisors is an integer number (859954725).
Almost surely, 230500053025 is an apocalyptic number.
It is an amenable number.
30500053025 is a deficient number, since it is larger than the sum of its proper divisors (10777773775).
30500053025 is a wasteful number, since it uses less digits than its factorization.
30500053025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2438 (or 2433 counting only the distinct ones).
The product of its (nonzero) digits is 2250, while the sum is 23.
Adding to 30500053025 its reverse (52035000503), we get a palindrome (82535053528).
The spelling of 30500053025 in words is "thirty billion, five hundred million, fifty-three thousand, twenty-five".
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