Base | Representation |
---|---|
bin | 101100001001… |
… | …0001100111110 |
3 | 1121112210112200 |
4 | 1120102030332 |
5 | 21411040410 |
6 | 2144012330 |
7 | 400466655 |
oct | 130221476 |
9 | 47483480 |
10 | 23143230 |
11 | 12077940 |
12 | 79010a6 |
13 | 4a44026 |
14 | 310619c |
15 | 20723c0 |
hex | 161233e |
23143230 has 96 divisors (see below), whose sum is σ = 66594528. Its totient is φ = 5529600.
The previous prime is 23143199. The next prime is 23143259. The reversal of 23143230 is 3234132.
23143230 is a `hidden beast` number, since 231 + 432 + 3 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95910 + ... + 96150.
It is an arithmetic number, because the mean of its divisors is an integer number (693693).
Almost surely, 223143230 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23143230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33297264).
23143230 is an abundant number, since it is smaller than the sum of its proper divisors (43451298).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23143230 is a wasteful number, since it uses less digits than its factorization.
23143230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 362 (or 359 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 23143230 is about 4810.7411071476. The cubic root of 23143230 is about 284.9758058871.
Adding to 23143230 its reverse (3234132), we get a palindrome (26377362).
The spelling of 23143230 in words is "twenty-three million, one hundred forty-three thousand, two hundred thirty".
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