Search a number
-
+
1210223020 = 22560511151
BaseRepresentation
bin100100000100010…
…1000100110101100
310010100020200212211
41020020220212230
54434304114040
6320031140204
741663503666
oct11010504654
93110220784
101210223020
11571159516
12299374664
131639636c6
14b6a31536
15713a98ea
hex482289ac

1210223020 has 12 divisors (see below), whose sum is σ = 2541468384. Its totient is φ = 484089200.

The previous prime is 1210223011. The next prime is 1210223129. The reversal of 1210223020 is 203220121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30255556 + ... + 30255595.

It is an arithmetic number, because the mean of its divisors is an integer number (211789032).

Almost surely, 21210223020 is an apocalyptic number.

1210223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210223020 is an abundant number, since it is smaller than the sum of its proper divisors (1331245364).

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

1210223020 is a wasteful number, since it uses less digits than its factorization.

1210223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60511160 (or 60511158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1210223020 is about 34788.2598012605. The cubic root of 1210223020 is about 1065.6677012326.

Adding to 1210223020 its reverse (203220121), we get a palindrome (1413443141).

The spelling of 1210223020 in words is "one billion, two hundred ten million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 60511151 121022302 242044604 302555755 605111510 1210223020