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1320320 = 2752063
BaseRepresentation
bin101000010010110000000
32111002010202
411002112000
5314222240
644144332
714136221
oct5022600
92432122
101320320
11821a81
125380a8
13372c71
14265248
151b1315
hex142580

1320320 has 32 divisors (see below), whose sum is σ = 3157920. Its totient is φ = 527872.

The previous prime is 1320307. The next prime is 1320331. The reversal of 1320320 is 230231.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (98685).

21320320 is an apocalyptic number.

1320320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320320 is an abundant number, since it is smaller than the sum of its proper divisors (1837600).

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

1320320 is an equidigital number, since it uses as much as digits as its factorization.

1320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1320320 is about 1149.0517829933. The cubic root of 1320320 is about 109.7049946663.

Adding to 1320320 its reverse (230231), we get a palindrome (1550551).

The spelling of 1320320 in words is "one million, three hundred twenty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 2063 4126 8252 10315 16504 20630 33008 41260 66016 82520 132032 165040 264064 330080 660160 1320320