Base | Representation |
---|---|
bin | 11100010110000000… |
… | …111101010101000111 |
3 | 2220120000011112110211 |
4 | 130112000331111013 |
5 | 444312113333111 |
6 | 21551540500251 |
7 | 2125120521556 |
oct | 342600752507 |
9 | 86500145424 |
10 | 30434121031 |
11 | 119a82a4646 |
12 | 5a943aa687 |
13 | 2b402c2352 |
14 | 1689d71d9d |
15 | bd1ccc521 |
hex | 71603d547 |
30434121031 has 16 divisors (see below), whose sum is σ = 31190261760. Its totient is φ = 29688887200.
The previous prime is 30434121001. The next prime is 30434121043. The reversal of 30434121031 is 13012143403.
It is a cyclic number.
It is not a de Polignac number, because 30434121031 - 211 = 30434118983 is a prime.
It is a super-2 number, since 2×304341210312 (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 = 30434120993 and 30434121011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30434121001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205950 + ... + 3215428.
It is an arithmetic number, because the mean of its divisors is an integer number (1949391360).
Almost surely, 230434121031 is an apocalyptic number.
30434121031 is a deficient number, since it is larger than the sum of its proper divisors (756140729).
30434121031 is a wasteful number, since it uses less digits than its factorization.
30434121031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10046.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 30434121031 its reverse (13012143403), we get a palindrome (43446264434).
The spelling of 30434121031 in words is "thirty billion, four hundred thirty-four million, one hundred twenty-one thousand, thirty-one".
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