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1310431132 = 22312340903
BaseRepresentation
bin100111000011011…
…1001011110011100
310101022210210120101
41032012321132130
510140432244012
6334011030444
744321323633
oct11606713634
93338723511
101310431132
1161278233a
12306a3b424
1317b64ab4a
14c607851a
157a0a0d57
hex4e1b979c

1310431132 has 18 divisors (see below), whose sum is σ = 2369623704. Its totient is φ = 634077720.

The previous prime is 1310431117. The next prime is 1310431139. The reversal of 1310431132 is 2311340131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310431139) by changing a digit.

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, 166608 + ... + 174295.

Almost surely, 21310431132 is an apocalyptic number.

It is an amenable number.

1310431132 is a deficient number, since it is larger than the sum of its proper divisors (1059192572).

1310431132 is a wasteful number, since it uses less digits than its factorization.

1310431132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340969 (or 340936 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1310431132 is about 36199.8775136049. The cubic root of 1310431132 is about 1094.3042032651.

Adding to 1310431132 its reverse (2311340131), we get a palindrome (3621771263).

The spelling of 1310431132 in words is "one billion, three hundred ten million, four hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 31 62 124 961 1922 3844 340903 681806 1363612 10567993 21135986 42271972 327607783 655215566 1310431132