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1318328 = 231171211
BaseRepresentation
bin101000001110110111000
32110222101222
411001312320
5314141303
644131212
714130344
oct5016670
92428358
101318328
11820530
12536b08
1337209b
14264624
151b0938
hex141db8

1318328 has 32 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 588000.

The previous prime is 1318313. The next prime is 1318349. The reversal of 1318328 is 8238131.

It is a junction number, because it is equal to n+sod(n) for n = 1318297 and 1318306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6143 + ... + 6353.

It is an arithmetic number, because the mean of its divisors is an integer number (85860).

21318328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373760).

1318328 is an abundant number, since it is smaller than the sum of its proper divisors (1429192).

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

1318328 is a wasteful number, since it uses less digits than its factorization.

1318328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 295 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 1318328 is about 1148.1846541389. The cubic root of 1318328 is about 109.6497953350.

The spelling of 1318328 in words is "one million, three hundred eighteen thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 71 88 142 211 284 422 568 781 844 1562 1688 2321 3124 4642 6248 9284 14981 18568 29962 59924 119848 164791 329582 659164 1318328