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1075280 = 24513441
BaseRepresentation
bin100000110100001010000
32000122000012
410012201100
5233402110
635014052
712065633
oct4064120
92018005
101075280
11674968
1243a328
132b857b
141ddc1a
15163905
hex106850

1075280 has 20 divisors (see below), whose sum is σ = 2500212. Its totient is φ = 430080.

The previous prime is 1075279. The next prime is 1075289. The reversal of 1075280 is 825701.

It can be written as a sum of positive squares in 2 ways, for example, as 258064 + 817216 = 508^2 + 904^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6641 + ... + 6800.

21075280 is an apocalyptic number.

1075280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1075280 is an abundant number, since it is smaller than the sum of its proper divisors (1424932).

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

1075280 is a wasteful number, since it uses less digits than its factorization.

1075280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1075280 is about 1036.9570868652. The cubic root of 1075280 is about 102.4488739677.

The spelling of 1075280 in words is "one million, seventy-five thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 13441 26882 53764 67205 107528 134410 215056 268820 537640 1075280