Base | Representation |
---|---|
bin | 1011110100101110000… |
… | …0100110101100101111 |
3 | 201102022111111110112001 |
4 | 2331023200212230233 |
5 | 11312002324114411 |
6 | 233152231153131 |
7 | 20450521033444 |
oct | 2751340465457 |
9 | 642274443461 |
10 | 203130301231 |
11 | 79168839910 |
12 | 3344bb157a7 |
13 | 162029c6320 |
14 | 9b8db259cb |
15 | 543d1a5dc1 |
hex | 2f4b826b2f |
203130301231 has 32 divisors (see below), whose sum is σ = 244952709120. Its totient is φ = 165968428800.
The previous prime is 203130301223. The next prime is 203130301277. The reversal of 203130301231 is 132103031302.
It is a cyclic number.
It is not a de Polignac number, because 203130301231 - 23 = 203130301223 is a prime.
It is a super-2 number, since 2×2031303012312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 203130301199 and 203130301208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (203130301331) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2914650 + ... + 2983528.
It is an arithmetic number, because the mean of its divisors is an integer number (7654772160).
Almost surely, 2203130301231 is an apocalyptic number.
203130301231 is a deficient number, since it is larger than the sum of its proper divisors (41822407889).
203130301231 is a wasteful number, since it uses less digits than its factorization.
203130301231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69447.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 203130301231 its reverse (132103031302), we get a palindrome (335233332533).
The spelling of 203130301231 in words is "two hundred three billion, one hundred thirty million, three hundred one thousand, two hundred thirty-one".
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