Search a number
-
+
223431230 = 251159173199
BaseRepresentation
bin11010101000101…
…00101000111110
3120120102111000202
431110110220332
5424144244410
634100523502
75352064001
oct1524245076
9516374022
10223431230
11105137210
12629b0592
133739c439
1421961538
1514936ca5
hexd514a3e

223431230 has 64 divisors (see below), whose sum is σ = 451008000. Its totient is φ = 79009920.

The previous prime is 223431191. The next prime is 223431233. The reversal of 223431230 is 32134322.

223431230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223431233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1122671 + ... + 1122869.

It is an arithmetic number, because the mean of its divisors is an integer number (7047000).

Almost surely, 2223431230 is an apocalyptic number.

223431230 is an abundant number, since it is smaller than the sum of its proper divisors (227576770).

223431230 is a wasteful number, since it uses less digits than its factorization.

223431230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 223431230 is about 14947.6161979093. The cubic root of 223431230 is about 606.8033346780.

Adding to 223431230 its reverse (32134322), we get a palindrome (255565552).

The spelling of 223431230 in words is "two hundred twenty-three million, four hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 59 110 118 173 199 295 346 398 590 649 865 995 1298 1730 1903 1990 2189 3245 3806 4378 6490 9515 10207 10945 11741 19030 20414 21890 23482 34427 51035 58705 68854 102070 112277 117410 129151 172135 224554 258302 344270 378697 561385 645755 757394 1122770 1291510 1893485 2031193 3786970 4062386 10155965 20311930 22343123 44686246 111715615 223431230