Base | Representation |
---|---|
bin | 1011110100010110011… |
… | …0010000100101001001 |
3 | 201102001120212112201120 |
4 | 2331011212100211021 |
5 | 11311301431321301 |
6 | 233134325305453 |
7 | 20445205022100 |
oct | 2750546204511 |
9 | 642046775646 |
10 | 203031120201 |
11 | 79117857718 |
12 | 33422865289 |
13 | 161b82ab520 |
14 | 9b808a9037 |
15 | 5434613e36 |
hex | 2f45990949 |
203031120201 has 96 divisors (see below), whose sum is σ = 351390630528. Its totient is φ = 103272744960.
The previous prime is 203031120179. The next prime is 203031120233. The reversal of 203031120201 is 102021130302.
It is not a de Polignac number, because 203031120201 - 214 = 203031103817 is a prime.
It is not an unprimeable number, because it can be changed into a prime (203031120001) 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 95 ways as a sum of consecutive naturals, for example, 7977186 + ... + 8002596.
It is an arithmetic number, because the mean of its divisors is an integer number (3660319068).
Almost surely, 2203031120201 is an apocalyptic number.
203031120201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
203031120201 is a deficient number, since it is larger than the sum of its proper divisors (148359510327).
203031120201 is a wasteful number, since it uses less digits than its factorization.
203031120201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25591 (or 25584 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 203031120201 its reverse (102021130302), we get a palindrome (305052250503).
The spelling of 203031120201 in words is "two hundred three billion, thirty-one million, one hundred twenty thousand, two hundred one".
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