Base | Representation |
---|---|
bin | 11100011010001100… |
… | …010100111001011111 |
3 | 2220201220001102111010 |
4 | 130122030110321133 |
5 | 444433034210030 |
6 | 22002523030303 |
7 | 2126631335616 |
oct | 343214247137 |
9 | 86656042433 |
10 | 30504210015 |
11 | 11a33916524 |
12 | 5ab396b393 |
13 | 2b51992516 |
14 | 16953b887d |
15 | bd80246b0 |
hex | 71a314e5f |
30504210015 has 64 divisors (see below), whose sum is σ = 53182863360. Its totient is φ = 14870968320.
The previous prime is 30504210013. The next prime is 30504210017. The reversal of 30504210015 is 51001240503.
It is an interprime number because it is at equal distance from previous prime (30504210013) and next prime (30504210017).
It is not a de Polignac number, because 30504210015 - 21 = 30504210013 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30504209973 and 30504210000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30504210013) 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 63 ways as a sum of consecutive naturals, for example, 1560321 + ... + 1579749.
It is an arithmetic number, because the mean of its divisors is an integer number (830982240).
Almost surely, 230504210015 is an apocalyptic number.
30504210015 is a deficient number, since it is larger than the sum of its proper divisors (22678653345).
30504210015 is a wasteful number, since it uses less digits than its factorization.
30504210015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19632.
The product of its (nonzero) digits is 600, while the sum is 21.
Adding to 30504210015 its reverse (51001240503), we get a palindrome (81505450518).
The spelling of 30504210015 in words is "thirty billion, five hundred four million, two hundred ten thousand, fifteen".
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