Base | Representation |
---|---|
bin | 1011110101000001000… |
… | …1001000001001101111 |
3 | 201102112001201012001021 |
4 | 2331100101020021233 |
5 | 11312133243130111 |
6 | 233204202155011 |
7 | 20452510414456 |
oct | 2752021101157 |
9 | 642461635037 |
10 | 203210130031 |
11 | 791a9903427 |
12 | 334727b2a67 |
13 | 162163c67bc |
14 | 9b9a585b9d |
15 | 54451c3d71 |
hex | 2f5044826f |
203210130031 has 4 divisors (see below), whose sum is σ = 203298599952. Its totient is φ = 203121660112.
The previous prime is 203210129939. The next prime is 203210130059. The reversal of 203210130031 is 130031012302.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 203210130031 - 211 = 203210127983 is a prime.
It is a super-2 number, since 2×2032101300312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 203210129987 and 203210130014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (203210160031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44231515 + ... + 44236108.
It is an arithmetic number, because the mean of its divisors is an integer number (50824649988).
Almost surely, 2203210130031 is an apocalyptic number.
203210130031 is a deficient number, since it is larger than the sum of its proper divisors (88469921).
203210130031 is an equidigital number, since it uses as much as digits as its factorization.
203210130031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 88469920.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 203210130031 its reverse (130031012302), we get a palindrome (333241142333).
The spelling of 203210130031 in words is "two hundred three billion, two hundred ten million, one hundred thirty thousand, thirty-one".
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