Base | Representation |
---|---|
bin | 11100111111100111… |
… | …001111100011011001 |
3 | 2222100122101121222221 |
4 | 130333213033203121 |
5 | 1002224244214001 |
6 | 22145111144041 |
7 | 2151323554312 |
oct | 347747174331 |
9 | 88318347887 |
10 | 31132023001 |
11 | 12226240732 |
12 | 604a075021 |
13 | 2c21a787b1 |
14 | 1714921609 |
15 | c231d81a1 |
hex | 73f9cf8d9 |
31132023001 has 2 divisors, whose sum is σ = 31132023002. Its totient is φ = 31132023000.
The previous prime is 31132022981. The next prime is 31132023011. The reversal of 31132023001 is 10032023113.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 20666937600 + 10465085401 = 143760^2 + 102299^2 .
It is a cyclic number.
It is not a de Polignac number, because 31132023001 - 25 = 31132022969 is a prime.
It is a super-2 number, since 2×311320230012 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (31132023011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566011500 + 15566011501.
It is an arithmetic number, because the mean of its divisors is an integer number (15566011501).
Almost surely, 231132023001 is an apocalyptic number.
It is an amenable number.
31132023001 is a deficient number, since it is larger than the sum of its proper divisors (1).
31132023001 is an equidigital number, since it uses as much as digits as its factorization.
31132023001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 31132023001 its reverse (10032023113), we get a palindrome (41164046114).
The spelling of 31132023001 in words is "thirty-one billion, one hundred thirty-two million, twenty-three thousand, one".
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