Base | Representation |
---|---|
bin | 10010101010100110… |
… | …01101010001000111 |
3 | 221212101100020000112 |
4 | 21111103031101013 |
5 | 131010341024111 |
6 | 4334213303235 |
7 | 503221242512 |
oct | 112523152107 |
9 | 27771306015 |
10 | 10021033031 |
11 | 4282680489 |
12 | 1b38034b1b |
13 | c39172b59 |
14 | 6b0c79d79 |
15 | 3d9b64e8b |
hex | 2554cd447 |
10021033031 has 2 divisors, whose sum is σ = 10021033032. Its totient is φ = 10021033030.
The previous prime is 10021032943. The next prime is 10021033039. The reversal of 10021033031 is 13033012001.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10021033031 is a prime.
It is a super-2 number, since 2×100210330312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 10021032997 and 10021033015.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10021033039) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010516515 + 5010516516.
It is an arithmetic number, because the mean of its divisors is an integer number (5010516516).
Almost surely, 210021033031 is an apocalyptic number.
10021033031 is a deficient number, since it is larger than the sum of its proper divisors (1).
10021033031 is an equidigital number, since it uses as much as digits as its factorization.
10021033031 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 10021033031 its reverse (13033012001), we get a palindrome (23054045032).
The spelling of 10021033031 in words is "ten billion, twenty-one million, thirty-three thousand, thirty-one".
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