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23143230 = 23251197241
BaseRepresentation
bin101100001001…
…0001100111110
31121112210112200
41120102030332
521411040410
62144012330
7400466655
oct130221476
947483480
1023143230
1112077940
1279010a6
134a44026
14310619c
1520723c0
hex161233e

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".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 97 99 110 165 194 198 241 291 330 482 485 495 582 723 873 970 990 1067 1205 1446 1455 1746 2134 2169 2410 2651 2910 3201 3615 4338 4365 5302 5335 6402 7230 7953 8730 9603 10670 10845 13255 15906 16005 19206 21690 23377 23859 26510 32010 39765 46754 47718 48015 70131 79530 96030 116885 119295 140262 210393 233770 238590 257147 350655 420786 514294 701310 771441 1051965 1285735 1542882 2103930 2314323 2571470 3857205 4628646 7714410 11571615 23143230