Search a number
-
+
1331450046 = 23273969447
BaseRepresentation
bin100111101011100…
…0101000010111110
310102210100200002200
41033113011002332
510211322400141
6340041332330
744665065363
oct11727050276
93383320080
101331450046
11623629143
12311a970a6
13182ac9c84
14c8b8a46a
157bd53ab6
hex4f5c50be

1331450046 has 12 divisors (see below), whose sum is σ = 2884808472. Its totient is φ = 443816676.

The previous prime is 1331450027. The next prime is 1331450077. The reversal of 1331450046 is 6400541331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36984706 + ... + 36984741.

It is an arithmetic number, because the mean of its divisors is an integer number (240400706).

Almost surely, 21331450046 is an apocalyptic number.

1331450046 is an abundant number, since it is smaller than the sum of its proper divisors (1553358426).

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

1331450046 is a wasteful number, since it uses less digits than its factorization.

1331450046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73969455 (or 73969452 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1331450046 is about 36489.0400805502. The cubic root of 1331450046 is about 1100.1239656434.

Adding to 1331450046 its reverse (6400541331), we get a palindrome (7731991377).

The spelling of 1331450046 in words is "one billion, three hundred thirty-one million, four hundred fifty thousand, forty-six".

Divisors: 1 2 3 6 9 18 73969447 147938894 221908341 443816682 665725023 1331450046