Base | Representation |
---|---|
bin | 11100011010001100… |
… | …010100111001101111 |
3 | 2220201220001102111201 |
4 | 130122030110321233 |
5 | 444433034210111 |
6 | 22002523030331 |
7 | 2126631335641 |
oct | 343214247157 |
9 | 86656042451 |
10 | 30504210031 |
11 | 11a33916539 |
12 | 5ab396b3a7 |
13 | 2b51992529 |
14 | 16953b8891 |
15 | bd80246c1 |
hex | 71a314e6f |
30504210031 has 16 divisors (see below), whose sum is σ = 31541944320. Its totient is φ = 29486091040.
The previous prime is 30504210017. The next prime is 30504210053. The reversal of 30504210031 is 13001240503.
It is a cyclic number.
It is not a de Polignac number, because 30504210031 - 213 = 30504201839 is a prime.
It is a super-2 number, since 2×305042100312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30504209990 and 30504210008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30504210001) 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 15 ways as a sum of consecutive naturals, for example, 1594881 + ... + 1613893.
It is an arithmetic number, because the mean of its divisors is an integer number (1971371520).
Almost surely, 230504210031 is an apocalyptic number.
30504210031 is a deficient number, since it is larger than the sum of its proper divisors (1037734289).
30504210031 is a wasteful number, since it uses less digits than its factorization.
30504210031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19526.
The product of its (nonzero) digits is 360, while the sum is 19.
Adding to 30504210031 its reverse (13001240503), we get a palindrome (43505450534).
The spelling of 30504210031 in words is "thirty billion, five hundred four million, two hundred ten thousand, thirty-one".
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