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1080280 = 235113239
BaseRepresentation
bin100000111101111011000
32000212212101
410013233120
5234032110
635053144
712116335
oct4075730
92025771
101080280
116786a3
124411b4
132ba926
1420198c
1516513a
hex107bd8

1080280 has 32 divisors (see below), whose sum is σ = 2462400. Its totient is φ = 426496.

The previous prime is 1080271. The next prime is 1080281. The reversal of 1080280 is 820801.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080281) 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 7 ways as a sum of consecutive naturals, for example, 4401 + ... + 4639.

It is an arithmetic number, because the mean of its divisors is an integer number (76950).

21080280 is an apocalyptic number.

1080280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1080280 is an abundant number, since it is smaller than the sum of its proper divisors (1382120).

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

1080280 is a wasteful number, since it uses less digits than its factorization.

1080280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1080280 is about 1039.3651908737. The cubic root of 1080280 is about 102.6074225764.

The spelling of 1080280 in words is "one million, eighty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 113 226 239 452 478 565 904 956 1130 1195 1912 2260 2390 4520 4780 9560 27007 54014 108028 135035 216056 270070 540140 1080280