Base | Representation |
---|---|
bin | 11101010001000101… |
… | …011001011100110010 |
3 | 10000010001221112122201 |
4 | 131101011121130302 |
5 | 1003324313444110 |
6 | 22234141453414 |
7 | 2161513200340 |
oct | 352105313462 |
9 | 100101845581 |
10 | 31425140530 |
11 | 12366744223 |
12 | 611027126a |
13 | 2c6a706a14 |
14 | 1741822990 |
15 | c3dcd7b3a |
hex | 751159732 |
31425140530 has 32 divisors (see below), whose sum is σ = 64852585344. Its totient is φ = 10739903616.
The previous prime is 31425140519. The next prime is 31425140569. The reversal of 31425140530 is 3504152413.
It is an unprimeable number.
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, 695232 + ... + 739051.
It is an arithmetic number, because the mean of its divisors is an integer number (2026643292).
Almost surely, 231425140530 is an apocalyptic number.
31425140530 is an abundant number, since it is smaller than the sum of its proper divisors (33427444814).
31425140530 is a wasteful number, since it uses less digits than its factorization.
31425140530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1434610.
The product of its (nonzero) digits is 7200, while the sum is 28.
Adding to 31425140530 its reverse (3504152413), we get a palindrome (34929292943).
The spelling of 31425140530 in words is "thirty-one billion, four hundred twenty-five million, one hundred forty thousand, five hundred thirty".
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