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209080 = 2355227
BaseRepresentation
bin110011000010111000
3101121210201
4303002320
523142310
64251544
71530364
oct630270
9347721
10209080
111330a3
12a0bb4
1374221
14562a4
1541e3a
hex330b8

209080 has 16 divisors (see below), whose sum is σ = 470520. Its totient is φ = 83616.

The previous prime is 209071. The next prime is 209089. The reversal of 209080 is 80902.

It is an interprime number because it is at equal distance from previous prime (209071) and next prime (209089).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209089) 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, 2574 + ... + 2653.

2209080 is an apocalyptic number.

209080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

209080 is an abundant number, since it is smaller than the sum of its proper divisors (261440).

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

209080 is a wasteful number, since it uses less digits than its factorization.

209080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238 (or 5234 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 209080 is about 457.2526653832. The cubic root of 209080 is about 59.3522923324.

Adding to 209080 its reverse (80902), we get a palindrome (289982).

The spelling of 209080 in words is "two hundred nine thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 5227 10454 20908 26135 41816 52270 104540 209080