Search a number
-
+
1210320412 = 22743225729
BaseRepresentation
bin100100000100100…
…0000011000011100
310010100102122110221
41020021000120130
54434320223122
6320033211124
741664360640
oct11011003034
93110378427
101210320412
11571215704
12299400aa4
13163998b32
14b6a58c20
15713c86c7
hex4824061c

1210320412 has 12 divisors (see below), whose sum is σ = 2420640880. Its totient is φ = 518708736.

The previous prime is 1210320373. The next prime is 1210320427. The reversal of 1210320412 is 2140230121.

1210320412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21612837 + ... + 21612892.

Almost surely, 21210320412 is an apocalyptic number.

It is an amenable number.

1210320412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1210320412 is a wasteful number, since it uses less digits than its factorization.

1210320412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43225740 (or 43225738 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1210320412 is about 34789.6595556783. The cubic root of 1210320412 is about 1065.6962867972.

Adding to 1210320412 its reverse (2140230121), we get a palindrome (3350550533).

The spelling of 1210320412 in words is "one billion, two hundred ten million, three hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 43225729 86451458 172902916 302580103 605160206 1210320412