Base | Representation |
---|---|
bin | 1001001111000110101100… |
… | …10001101010011100101111 |
3 | 2122220122011210002222200000 |
4 | 10213203112101222130233 |
5 | 10130230242241030111 |
6 | 111110213251435343 |
7 | 4164235461226623 |
oct | 447432621523457 |
9 | 78818153088600 |
10 | 20310200330031 |
11 | 6520564667257 |
12 | 2340304bb5b53 |
13 | b44322471391 |
14 | 503039d8d183 |
15 | 2534accc4c56 |
hex | 1278d646a72f |
20310200330031 has 24 divisors (see below), whose sum is σ = 30922256046864. Its totient is φ = 13318164141120.
The previous prime is 20310200329931. The next prime is 20310200330047. The reversal of 20310200330031 is 13003300201302.
20310200330031 is a `hidden beast` number, since 2 + 0 + 310 + 20 + 0 + 3 + 300 + 31 = 666.
It is not a de Polignac number, because 20310200330031 - 215 = 20310200297263 is a prime.
It is a super-2 number, since 2×203102003300312 (a number of 27 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20310200329986 and 20310200330013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310200330081) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685075926 + ... + 685105571.
It is an arithmetic number, because the mean of its divisors is an integer number (1288427335286).
Almost surely, 220310200330031 is an apocalyptic number.
20310200330031 is a deficient number, since it is larger than the sum of its proper divisors (10612055716833).
20310200330031 is an equidigital number, since it uses as much as digits as its factorization.
20310200330031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1370181573 (or 1370181561 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 20310200330031 its reverse (13003300201302), we get a palindrome (33313500531333).
The spelling of 20310200330031 in words is "twenty trillion, three hundred ten billion, two hundred million, three hundred thirty thousand, thirty-one".
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