Base | Representation |
---|---|
bin | 10010101011110100… |
… | …00110110001001111 |
3 | 221220002112021200012 |
4 | 21111322012301033 |
5 | 131020443330111 |
6 | 4335220023435 |
7 | 503404022414 |
oct | 112572066117 |
9 | 27802467605 |
10 | 10031230031 |
11 | 4288405659 |
12 | 1b3b531b7b |
13 | c3b303294 |
14 | 6b237210b |
15 | 3da9cb48b |
hex | 255e86c4f |
10031230031 has 2 divisors, whose sum is σ = 10031230032. Its totient is φ = 10031230030.
The previous prime is 10031229979. The next prime is 10031230057. The reversal of 10031230031 is 13003213001.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10031230031 is a prime.
It is a super-2 number, since 2×100312300312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 10031229988 and 10031230015.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10031230331) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015615015 + 5015615016.
It is an arithmetic number, because the mean of its divisors is an integer number (5015615016).
Almost surely, 210031230031 is an apocalyptic number.
10031230031 is a deficient number, since it is larger than the sum of its proper divisors (1).
10031230031 is an equidigital number, since it uses as much as digits as its factorization.
10031230031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 54, while the sum is 14.
Adding to 10031230031 its reverse (13003213001), we get a palindrome (23034443032).
The spelling of 10031230031 in words is "ten billion, thirty-one million, two hundred thirty thousand, thirty-one".
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