Base | Representation |
---|---|
bin | 11000001110010… |
… | …01101000000111 |
3 | 112011100200102010 |
4 | 30013021220013 |
5 | 404004413111 |
6 | 32055145303 |
7 | 5015115555 |
oct | 1407115007 |
9 | 464320363 |
10 | 203201031 |
11 | a4779a40 |
12 | 58075233 |
13 | 331382c7 |
14 | 1cdb6bd5 |
15 | 12c8caa6 |
hex | c1c9a07 |
203201031 has 8 divisors (see below), whose sum is σ = 295565184. Its totient is φ = 123152120.
The previous prime is 203201027. The next prime is 203201041. The reversal of 203201031 is 130102302.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 203201031 - 22 = 203201027 is a prime.
It is a super-2 number, since 2×2032010312 = 82581317998925922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 203200998 and 203201016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (203201041) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3078771 + ... + 3078836.
It is an arithmetic number, because the mean of its divisors is an integer number (36945648).
Almost surely, 2203201031 is an apocalyptic number.
203201031 is a deficient number, since it is larger than the sum of its proper divisors (92364153).
203201031 is a wasteful number, since it uses less digits than its factorization.
203201031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6157621.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 203201031 is about 14254.8599081155. The cubic root of 203201031 is about 587.9070060950.
Adding to 203201031 its reverse (130102302), we get a palindrome (333303333).
The spelling of 203201031 in words is "two hundred three million, two hundred one thousand, thirty-one".
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