Base | Representation |
---|---|
bin | 11100000100100000… |
… | …001011011110001010 |
3 | 2212210112022200002121 |
4 | 130010200023132022 |
5 | 443211410044110 |
6 | 21502443321454 |
7 | 2114622312013 |
oct | 340440133612 |
9 | 85715280077 |
10 | 30140315530 |
11 | 11867471186 |
12 | 5a11b2028a |
13 | 2ac4482c40 |
14 | 165cd3200a |
15 | bb60e3cda |
hex | 70480b78a |
30140315530 has 32 divisors (see below), whose sum is σ = 58433650128. Its totient is φ = 11127244800.
The previous prime is 30140315479. The next prime is 30140315537. The reversal of 30140315530 is 3551304103.
It can be written as a sum of positive squares in 8 ways, for example, as 284968161 + 29855347369 = 16881^2 + 172787^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30140315495 and 30140315504.
It is not an unprimeable number, because it can be changed into a prime (30140315537) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1634160 + ... + 1652500.
Almost surely, 230140315530 is an apocalyptic number.
30140315530 is a deficient number, since it is larger than the sum of its proper divisors (28293334598).
30140315530 is a wasteful number, since it uses less digits than its factorization.
30140315530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31002.
The product of its (nonzero) digits is 2700, while the sum is 25.
Adding to 30140315530 its reverse (3551304103), we get a palindrome (33691619633).
The spelling of 30140315530 in words is "thirty billion, one hundred forty million, three hundred fifteen thousand, five hundred thirty".
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