Base | Representation |
---|---|
bin | 1101011101110001011… |
… | …0010011010000001000 |
3 | 211010002210101200101002 |
4 | 3113130112103100020 |
5 | 12242231001201412 |
6 | 254134354514132 |
7 | 22466401260050 |
oct | 3273426232010 |
9 | 733083350332 |
10 | 231330100232 |
11 | 8a1198a1220 |
12 | 389bbb95948 |
13 | 18a7812aa1a |
14 | b2a7044560 |
15 | 603dc36dc2 |
hex | 35dc593408 |
231330100232 has 128 divisors (see below), whose sum is σ = 564962169600. Its totient is φ = 86158464000.
The previous prime is 231330100231. The next prime is 231330100237. The reversal of 231330100232 is 232001033132.
It is not an unprimeable number, because it can be changed into a prime (231330100231) 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 31 ways as a sum of consecutive naturals, for example, 1740158 + ... + 1868370.
It is an arithmetic number, because the mean of its divisors is an integer number (4413766950).
Almost surely, 2231330100232 is an apocalyptic number.
231330100232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 231330100232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282481084800).
231330100232 is an abundant number, since it is smaller than the sum of its proper divisors (333632069368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231330100232 is a wasteful number, since it uses less digits than its factorization.
231330100232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 128367 (or 128363 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 231330100232 its reverse (232001033132), we get a palindrome (463331133364).
The spelling of 231330100232 in words is "two hundred thirty-one billion, three hundred thirty million, one hundred thousand, two hundred thirty-two".
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