Search a number
-
+
428243130 = 23257679751
BaseRepresentation
bin11001100001100…
…111100010111010
31002211211000010200
4121201213202322
51334112240010
6110254423030
713420002150
oct3141474272
91084730120
10428243130
111aa806447
12bb501a76
136a94ca03
1440c373d0
15278e1cc0
hex198678ba

428243130 has 48 divisors (see below), whose sum is σ = 1272495744. Its totient is φ = 97884000.

The previous prime is 428243129. The next prime is 428243159. The reversal of 428243130 is 31342824.

It is a junction number, because it is equal to n+sod(n) for n = 428243094 and 428243103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339246 + ... + 340505.

It is an arithmetic number, because the mean of its divisors is an integer number (26510328).

Almost surely, 2428243130 is an apocalyptic number.

428243130 is an abundant number, since it is smaller than the sum of its proper divisors (844252614).

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

428243130 is a wasteful number, since it uses less digits than its factorization.

428243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679771 (or 679768 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 428243130 is about 20694.0360973881. The cubic root of 428243130 is about 753.7548764979.

Adding to 428243130 its reverse (31342824), we get a palindrome (459585954).

It can be divided in two parts, 42824 and 3130, that added together give a palindrome (45954).

The spelling of 428243130 in words is "four hundred twenty-eight million, two hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 679751 1359502 2039253 3398755 4078506 4758257 6117759 6797510 9516514 10196265 12235518 14274771 20392530 23791285 28549542 30588795 42824313 47582570 61177590 71373855 85648626 142747710 214121565 428243130