Base | Representation |
---|---|
bin | 11011011111101… |
… | …01000011101111 |
3 | 121001222211012201 |
4 | 31233311003233 |
5 | 433021020103 |
6 | 34515242331 |
7 | 5500265242 |
oct | 1557650357 |
9 | 531884181 |
10 | 230641903 |
11 | 109211748 |
12 | 652a93a7 |
13 | 38a254cb |
14 | 228bb259 |
15 | 153ad51d |
hex | dbf50ef |
230641903 has 8 divisors (see below), whose sum is σ = 232677296. Its totient is φ = 228614400.
The previous prime is 230641897. The next prime is 230641919. The reversal of 230641903 is 309146032.
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 230641903 - 221 = 228544751 is a prime.
It is a super-2 number, since 2×2306419032 = 106391374838922818, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230641963) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66943 + ... + 70303.
It is an arithmetic number, because the mean of its divisors is an integer number (29084662).
Almost surely, 2230641903 is an apocalyptic number.
230641903 is a deficient number, since it is larger than the sum of its proper divisors (2035393).
230641903 is a wasteful number, since it uses less digits than its factorization.
230641903 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3945.
The product of its (nonzero) digits is 3888, while the sum is 28.
The square root of 230641903 is about 15186.8990580698. The cubic root of 230641903 is about 613.2620224341.
Adding to 230641903 its reverse (309146032), we get a palindrome (539787935).
The spelling of 230641903 in words is "two hundred thirty million, six hundred forty-one thousand, nine hundred three".
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