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1080580 = 22597557
BaseRepresentation
bin100000111110100000100
32000220021111
410013310010
5234034310
635054404
712120244
oct4076404
92026244
101080580
11678946
12441404
132baac7
14201b24
1516528a
hex107d04

1080580 has 24 divisors (see below), whose sum is σ = 2296728. Its totient is φ = 427008.

The previous prime is 1080559. The next prime is 1080589. The reversal of 1080580 is 850801.

It can be written as a sum of positive squares in 4 ways, for example, as 3136 + 1077444 = 56^2 + 1038^2 .

It is a super-3 number, since 3×10805803 = 3785227878393336000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1080589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662 + ... + 2218.

It is an arithmetic number, because the mean of its divisors is an integer number (95697).

21080580 is an apocalyptic number.

1080580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1080580 is an abundant number, since it is smaller than the sum of its proper divisors (1216148).

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

1080580 is a wasteful number, since it uses less digits than its factorization.

1080580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 1080580 is about 1039.5094997161. The cubic root of 1080580 is about 102.6169199221.

The spelling of 1080580 in words is "one million, eighty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 97 194 388 485 557 970 1114 1940 2228 2785 5570 11140 54029 108058 216116 270145 540290 1080580