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1318160 = 24516477
BaseRepresentation
bin101000001110100010000
32110222011202
411001310100
5314140120
644130332
714130014
oct5016420
92428152
101318160
11820398
125369a8
13371c9c
14264544
151b0875
hex141d10

1318160 has 20 divisors (see below), whose sum is σ = 3064908. Its totient is φ = 527232.

The previous prime is 1318157. The next prime is 1318169. The reversal of 1318160 is 618131.

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 861184 = 676^2 + 928^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8159 + ... + 8318.

21318160 is an apocalyptic number.

1318160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1318160 is an abundant number, since it is smaller than the sum of its proper divisors (1746748).

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

1318160 is a wasteful number, since it uses less digits than its factorization.

1318160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16490 (or 16484 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1318160 is about 1148.1114928438. Note that the first 3 decimals coincide. The cubic root of 1318160 is about 109.6451374278.

The spelling of 1318160 in words is "one million, three hundred eighteen thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 16477 32954 65908 82385 131816 164770 263632 329540 659080 1318160