Base | Representation |
---|---|
bin | 11011100011111… |
… | …01100100000110 |
3 | 121010001020012010 |
4 | 31301331210012 |
5 | 433141413110 |
6 | 34535235050 |
7 | 5505114324 |
oct | 1561754406 |
9 | 533036163 |
10 | 231201030 |
11 | 109563835 |
12 | 65518a86 |
13 | 38b8cb58 |
14 | 229c4d14 |
15 | 1546e020 |
hex | dc7d906 |
231201030 has 16 divisors (see below), whose sum is σ = 554882544. Its totient is φ = 61653600.
The previous prime is 231201029. The next prime is 231201053. The reversal of 231201030 is 30102132.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 231200997 and 231201015.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853321 + ... + 3853380.
It is an arithmetic number, because the mean of its divisors is an integer number (34680159).
Almost surely, 2231201030 is an apocalyptic number.
231201030 is an abundant number, since it is smaller than the sum of its proper divisors (323681514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231201030 is a wasteful number, since it uses less digits than its factorization.
231201030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7706711.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 231201030 is about 15205.2961168140. The cubic root of 231201030 is about 613.7571834628.
Adding to 231201030 its reverse (30102132), we get a palindrome (261303162).
The spelling of 231201030 in words is "two hundred thirty-one million, two hundred one thousand, thirty".
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