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1331044412 = 22389855427
BaseRepresentation
bin100111101010110…
…0010000000111100
310102202121001200012
41033111202000330
510211221410122
6340024522352
744661455645
oct11725420074
93382531605
101331044412
11623381405
123119203b8
131829b7459
14c8ac26cc
157bcc37e2
hex4f56203c

1331044412 has 12 divisors (see below), whose sum is σ = 2335318440. Its totient is φ = 663810576.

The previous prime is 1331044399. The next prime is 1331044417. The reversal of 1331044412 is 2144401331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331044417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426158 + ... + 429269.

It is an arithmetic number, because the mean of its divisors is an integer number (194609870).

Almost surely, 21331044412 is an apocalyptic number.

It is an amenable number.

1331044412 is a deficient number, since it is larger than the sum of its proper divisors (1004274028).

1331044412 is a wasteful number, since it uses less digits than its factorization.

1331044412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855820 (or 855818 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1331044412 is about 36483.4813580064. The cubic root of 1331044412 is about 1100.0122345747.

Adding to 1331044412 its reverse (2144401331), we get a palindrome (3475445743).

The spelling of 1331044412 in words is "one billion, three hundred thirty-one million, forty-four thousand, four hundred twelve".

Divisors: 1 2 4 389 778 1556 855427 1710854 3421708 332761103 665522206 1331044412