[go: up one dir, main page]

Search a number
-
+
1210243230 = 232571921021
BaseRepresentation
bin100100000100010…
…1101100010011110
310010100021201121100
41020020231202132
54434310240410
6320031413530
741663616630
oct11010554236
93110251540
101210243230
11571172719
122993842a6
1316396c971
14b6a38a50
15713b08c0
hex4822d89e

1210243230 has 48 divisors (see below), whose sum is σ = 3596153184. Its totient is φ = 276626880.

The previous prime is 1210243211. The next prime is 1210243267. The reversal of 1210243230 is 323420121.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 959881 + ... + 961140.

It is an arithmetic number, because the mean of its divisors is an integer number (74919858).

Almost surely, 21210243230 is an apocalyptic number.

1210243230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210243230 is an abundant number, since it is smaller than the sum of its proper divisors (2385909954).

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

1210243230 is a wasteful number, since it uses less digits than its factorization.

1210243230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921041 (or 1921038 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1210243230 is about 34788.5502716052. The cubic root of 1210243230 is about 1065.6736332038.

Adding to 1210243230 its reverse (323420121), we get a palindrome (1533663351).

The spelling of 1210243230 in words is "one billion, two hundred ten million, two hundred forty-three thousand, two 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 1921021 3842042 5763063 9605105 11526126 13447147 17289189 19210210 26894294 28815315 34578378 40341441 57630630 67235735 80682882 86445945 121024323 134471470 172891890 201707205 242048646 403414410 605121615 1210243230