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1313030444 = 221129841601
BaseRepresentation
bin100111001000011…
…0100000100101100
310101111200212011012
41032100310010230
510142113433234
6334142444352
744352401045
oct11620640454
93344625135
101313030444
11614198230
123078936b8
1317c04acbb
14c65538cc
157a4160ce
hex4e43412c

1313030444 has 12 divisors (see below), whose sum is σ = 2506694568. Its totient is φ = 596832000.

The previous prime is 1313030443. The next prime is 1313030519. The reversal of 1313030444 is 4440303131.

It is not an unprimeable number, because it can be changed into a prime (1313030441) 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, 14920757 + ... + 14920844.

It is an arithmetic number, because the mean of its divisors is an integer number (208891214).

Almost surely, 21313030444 is an apocalyptic number.

It is an amenable number.

1313030444 is a deficient number, since it is larger than the sum of its proper divisors (1193664124).

1313030444 is a wasteful number, since it uses less digits than its factorization.

1313030444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29841616 (or 29841614 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1313030444 is about 36235.7619486606. The cubic root of 1313030444 is about 1095.0272628617.

Adding to 1313030444 its reverse (4440303131), we get a palindrome (5753333575).

The spelling of 1313030444 in words is "one billion, three hundred thirteen million, thirty thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 44 29841601 59683202 119366404 328257611 656515222 1313030444