Base | Representation |
---|---|
bin | 1110001100001000010111… |
… | …01010101001010010110001 |
3 | 11002110222201222221120022121 |
4 | 13012010023222221102301 |
5 | 13042213004040242001 |
6 | 150210304345434241 |
7 | 6400231504320553 |
oct | 706041352512261 |
9 | 132428658846277 |
10 | 31203133134001 |
11 | 9a401a1210094 |
12 | 35bb46219b981 |
13 | 145459ab835aa |
14 | 79c34da554d3 |
15 | 3919e9aa56a1 |
hex | 1c610baa94b1 |
31203133134001 has 16 divisors (see below), whose sum is σ = 32457227426640. Its totient is φ = 29961293824000.
The previous prime is 31203133133983. The next prime is 31203133134037. The reversal of 31203133134001 is 10043133130213.
It can be written as a sum of positive squares in 8 ways, for example, as 747922280625 + 30455210853376 = 864825^2 + 5518624^2 .
It is a cyclic number.
It is not a de Polignac number, because 31203133134001 - 219 = 31203132609713 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31203133134401) 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, 1205751 + ... + 7991251.
It is an arithmetic number, because the mean of its divisors is an integer number (2028576714165).
Almost surely, 231203133134001 is an apocalyptic number.
It is an amenable number.
31203133134001 is a deficient number, since it is larger than the sum of its proper divisors (1254094292639).
31203133134001 is a wasteful number, since it uses less digits than its factorization.
31203133134001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6786404.
The product of its (nonzero) digits is 1944, while the sum is 25.
Adding to 31203133134001 its reverse (10043133130213), we get a palindrome (41246266264214).
The spelling of 31203133134001 in words is "thirty-one trillion, two hundred three billion, one hundred thirty-three million, one hundred thirty-four thousand, one".
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