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1312030112 = 25311322611
BaseRepresentation
bin100111000110011…
…1111110110100000
310101102211000221212
41032030333312200
510141334430422
6334105205252
744341033451
oct11614776640
93342730855
101312030112
11613674708
12307490828
1317ba8a8a3
14c6373128
157a2b99e2
hex4e33fda0

1312030112 has 24 divisors (see below), whose sum is σ = 2666385792. Its totient is φ = 634852800.

The previous prime is 1312030103. The next prime is 1312030117. The reversal of 1312030112 is 2110302131.

It is not an unprimeable number, because it can be changed into a prime (1312030117) 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 3 ways as a sum of consecutive naturals, for example, 660314 + ... + 662297.

It is an arithmetic number, because the mean of its divisors is an integer number (111099408).

Almost surely, 21312030112 is an apocalyptic number.

It is an amenable number.

1312030112 is an abundant number, since it is smaller than the sum of its proper divisors (1354355680).

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

1312030112 is a wasteful number, since it uses less digits than its factorization.

1312030112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322652 (or 1322644 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312030112 is about 36221.9562144288. The cubic root of 1312030112 is about 1094.7491101073.

Adding to 1312030112 its reverse (2110302131), we get a palindrome (3422332243).

The spelling of 1312030112 in words is "one billion, three hundred twelve million, thirty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 1322611 2645222 5290444 10580888 21161776 41000941 42323552 82001882 164003764 328007528 656015056 1312030112