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1318134404 = 221086130341
BaseRepresentation
bin100111010010001…
…0010001010000100
310101212022011110202
41032210102022010
510144420300104
6334444110032
744443646306
oct11644221204
93355264422
101318134404
11617063984
12309535318
131801171b2
14c70c1976
157aac351e
hex4e912284

1318134404 has 12 divisors (see below), whose sum is σ = 2307023628. Its totient is φ = 658984800.

The previous prime is 1318134401. The next prime is 1318134431. The reversal of 1318134404 is 4044318131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 357134404 + 961000000 = 18898^2 + 31000^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1318134401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28274 + ... + 58614.

It is an arithmetic number, because the mean of its divisors is an integer number (192251969).

Almost surely, 21318134404 is an apocalyptic number.

It is an amenable number.

1318134404 is a deficient number, since it is larger than the sum of its proper divisors (988889224).

1318134404 is a wasteful number, since it uses less digits than its factorization.

1318134404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41206 (or 41204 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1318134404 is about 36306.1207511901. The cubic root of 1318134404 is about 1096.4442772766. Note that the first 3 decimals are identical.

The spelling of 1318134404 in words is "one billion, three hundred eighteen million, one hundred thirty-four thousand, four hundred four".

Divisors: 1 2 4 10861 21722 30341 43444 60682 121364 329533601 659067202 1318134404