Base | Representation |
---|---|
bin | 11100111001000111… |
… | …110110011010111101 |
3 | 2222002001111022021222 |
4 | 130321013312122331 |
5 | 1002013410132201 |
6 | 22130221203125 |
7 | 2145532154012 |
oct | 347107663275 |
9 | 88061438258 |
10 | 31023130301 |
11 | 1217a825a69 |
12 | 60197004a5 |
13 | 2c05340447 |
14 | 1704297709 |
15 | c1887891b |
hex | 7391f66bd |
31023130301 has 2 divisors, whose sum is σ = 31023130302. Its totient is φ = 31023130300.
The previous prime is 31023130267. The next prime is 31023130331. The reversal of 31023130301 is 10303132013.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 24382510201 + 6640620100 = 156149^2 + 81490^2 .
It is a cyclic number.
It is not a de Polignac number, because 31023130301 - 218 = 31022868157 is a prime.
It is a super-2 number, since 2×310231303012 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 31023130301.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31023130331) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511565150 + 15511565151.
It is an arithmetic number, because the mean of its divisors is an integer number (15511565151).
Almost surely, 231023130301 is an apocalyptic number.
It is an amenable number.
31023130301 is a deficient number, since it is larger than the sum of its proper divisors (1).
31023130301 is an equidigital number, since it uses as much as digits as its factorization.
31023130301 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 31023130301 its reverse (10303132013), we get a palindrome (41326262314).
The spelling of 31023130301 in words is "thirty-one billion, twenty-three million, one hundred thirty thousand, three hundred one".
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