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234142230 = 23572938447
BaseRepresentation
bin11011111010010…
…11101000010110
3121022120122202110
431331023220112
5434420022410
635122251450
75542114260
oct1575135026
9538518673
10234142230
11110192583
12664b6b86
133967c7ca
142314cb30
1515850720
hexdf4ba16

234142230 has 64 divisors (see below), whose sum is σ = 664381440. Its totient is φ = 51671424.

The previous prime is 234142229. The next prime is 234142243. The reversal of 234142230 is 32241432.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 234142197 and 234142206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13134 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (10380960).

Almost surely, 2234142230 is an apocalyptic number.

234142230 is an abundant number, since it is smaller than the sum of its proper divisors (430239210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234142230 is a wasteful number, since it uses less digits than its factorization.

234142230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38493.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 234142230 is about 15301.7067675472. The cubic root of 234142230 is about 616.3488406866.

Adding to 234142230 its reverse (32241432), we get a palindrome (266383662).

The spelling of 234142230 in words is "two hundred thirty-four million, one hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 29 30 35 42 58 70 87 105 145 174 203 210 290 406 435 609 870 1015 1218 2030 3045 6090 38447 76894 115341 192235 230682 269129 384470 538258 576705 807387 1114963 1153410 1345645 1614774 2229926 2691290 3344889 4036935 5574815 6689778 7804741 8073870 11149630 15609482 16724445 23414223 33448890 39023705 46828446 78047410 117071115 234142230