Base | Representation |
---|---|
bin | 101101100100010000101… |
… | …000000101001000100111 |
3 | 102002100110101101112211100 |
4 | 231210100220011020213 |
5 | 402300410341213111 |
6 | 10354300510411143 |
7 | 442141532462010 |
oct | 55442050051047 |
9 | 12070411345740 |
10 | 3131310101031 |
11 | aa7a87a12132 |
12 | 426a51500ab3 |
13 | 199386c68238 |
14 | ab7b0392007 |
15 | 566bc5e0756 |
hex | 2d910a05227 |
3131310101031 has 24 divisors (see below), whose sum is σ = 5175834037920. Its totient is φ = 1787005256256.
The previous prime is 3131310100921. The next prime is 3131310101039. The reversal of 3131310101031 is 1301010131313.
3131310101031 is a `hidden beast` number, since 313 + 1 + 310 + 1 + 0 + 10 + 31 = 666.
It is not a de Polignac number, because 3131310101031 - 27 = 3131310100903 is a prime.
It is a super-2 number, since 2×31313101010312 (a number of 26 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 3131310100995 and 3131310101013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3131310101039) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32100936 + ... + 32198333.
It is an arithmetic number, because the mean of its divisors is an integer number (215659751580).
Almost surely, 23131310101031 is an apocalyptic number.
3131310101031 is a deficient number, since it is larger than the sum of its proper divisors (2044523936889).
3131310101031 is a wasteful number, since it uses less digits than its factorization.
3131310101031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64300055 (or 64300052 counting only the distinct ones).
The product of its (nonzero) digits is 81, while the sum is 18.
Adding to 3131310101031 its reverse (1301010131313), we get a palindrome (4432320232344).
The spelling of 3131310101031 in words is "three trillion, one hundred thirty-one billion, three hundred ten million, one hundred one thousand, thirty-one".
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