Base | Representation |
---|---|
bin | 11101001001110100… |
… | …000001101100000001 |
3 | 2222210120101120221201 |
4 | 131021310001230001 |
5 | 1003102101134431 |
6 | 22214103021201 |
7 | 2155502232013 |
oct | 351164015401 |
9 | 88716346851 |
10 | 31303146241 |
11 | 123038a00a4 |
12 | 609743a801 |
13 | 2c4b362153 |
14 | 172d5481b3 |
15 | c3323b461 |
hex | 749d01b01 |
31303146241 has 16 divisors (see below), whose sum is σ = 32656555008. Its totient is φ = 29971656000.
The previous prime is 31303146233. The next prime is 31303146269. The reversal of 31303146241 is 14264130313.
It is a cyclic number.
It is not a de Polignac number, because 31303146241 - 23 = 31303146233 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31303176241) 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, 5780251 + ... + 5785663.
It is an arithmetic number, because the mean of its divisors is an integer number (2041034688).
Almost surely, 231303146241 is an apocalyptic number.
31303146241 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
31303146241 is a deficient number, since it is larger than the sum of its proper divisors (1353408767).
31303146241 is a wasteful number, since it uses less digits than its factorization.
31303146241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7392.
The product of its (nonzero) digits is 5184, while the sum is 28.
Adding to 31303146241 its reverse (14264130313), we get a palindrome (45567276554).
The spelling of 31303146241 in words is "thirty-one billion, three hundred three million, one hundred forty-six thousand, two hundred forty-one".
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