Base | Representation |
---|---|
bin | 111111001011110… |
… | …0101101110000111 |
3 | 12110202100220022212 |
4 | 1332113211232013 |
5 | 13320222104111 |
6 | 550213214035 |
7 | 103352443361 |
oct | 17627455607 |
9 | 5422326285 |
10 | 2120113031 |
11 | 998826333 |
12 | 4b203131b |
13 | 27a31086a |
14 | 161803d31 |
15 | c61db98b |
hex | 7e5e5b87 |
2120113031 has 2 divisors, whose sum is σ = 2120113032. Its totient is φ = 2120113030.
The previous prime is 2120113013. The next prime is 2120113091. The reversal of 2120113031 is 1303110212.
Together with previous prime (2120113013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2120113031 - 214 = 2120096647 is a prime.
It is a super-2 number, since 2×21201130312 = 8989758528432013922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2120112997 and 2120113015.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2120113001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060056515 + 1060056516.
It is an arithmetic number, because the mean of its divisors is an integer number (1060056516).
Almost surely, 22120113031 is an apocalyptic number.
2120113031 is a deficient number, since it is larger than the sum of its proper divisors (1).
2120113031 is an equidigital number, since it uses as much as digits as its factorization.
2120113031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 2120113031 is about 46044.6851547494. The cubic root of 2120113031 is about 1284.6544879987.
Adding to 2120113031 its reverse (1303110212), we get a palindrome (3423223243).
The spelling of 2120113031 in words is "two billion, one hundred twenty million, one hundred thirteen thousand, thirty-one".
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