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11320180 = 2254313163
BaseRepresentation
bin101011001011…
…101101110100
3210022010100221
4223023231310
510344221210
61042344124
7165135304
oct53135564
923263327
1011320180
116432023
12395b044
132464741
141709604
15ed91da
hexacbb74

11320180 has 24 divisors (see below), whose sum is σ = 24327072. Its totient is φ = 4422432.

The previous prime is 11320151. The next prime is 11320189. The reversal of 11320180 is 8102311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320189) 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, 5722 + ... + 7441.

It is an arithmetic number, because the mean of its divisors is an integer number (1013628).

Almost surely, 211320180 is an apocalyptic number.

11320180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320180 is an abundant number, since it is smaller than the sum of its proper divisors (13006892).

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

11320180 is a wasteful number, since it uses less digits than its factorization.

11320180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13215 (or 13213 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11320180 is about 3364.5475178692. The cubic root of 11320180 is about 224.5352051178.

Adding to 11320180 its reverse (8102311), we get a palindrome (19422491).

The spelling of 11320180 in words is "eleven million, three hundred twenty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 13163 26326 52652 65815 131630 263260 566009 1132018 2264036 2830045 5660090 11320180