Base | Representation |
---|---|
bin | 11100010011011111… |
… | …111100000010000010 |
3 | 2220110001202000112221 |
4 | 130103133330002002 |
5 | 444220312114110 |
6 | 21543432041254 |
7 | 2124065656102 |
oct | 342337740202 |
9 | 86401660487 |
10 | 30391910530 |
11 | 11986494233 |
12 | 5a8223322a |
13 | 2b34633617 |
14 | 1684505202 |
15 | bcd2407da |
hex | 7137fc082 |
30391910530 has 16 divisors (see below), whose sum is σ = 54898749504. Its totient is φ = 12113806320.
The previous prime is 30391910513. The next prime is 30391910533. The reversal of 30391910530 is 3501919303.
It is not an unprimeable number, because it can be changed into a prime (30391910533) 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 7 ways as a sum of consecutive naturals, for example, 5366766 + ... + 5372425.
It is an arithmetic number, because the mean of its divisors is an integer number (3431171844).
Almost surely, 230391910530 is an apocalyptic number.
30391910530 is a deficient number, since it is larger than the sum of its proper divisors (24506838974).
30391910530 is a wasteful number, since it uses less digits than its factorization.
30391910530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10739481.
The product of its (nonzero) digits is 10935, while the sum is 34.
The spelling of 30391910530 in words is "thirty billion, three hundred ninety-one million, nine hundred ten thousand, five hundred thirty".
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