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12089800 = 235260449
BaseRepresentation
bin101110000111…
…100111001000
3211202020002101
4232013213020
511043333200
61111043144
7204522142
oct56074710
924666071
1012089800
116908278
1240704b4
132673b38
141869c92
1510dc26a
hexb879c8

12089800 has 24 divisors (see below), whose sum is σ = 28109250. Its totient is φ = 4835840.

The previous prime is 12089797. The next prime is 12089807. The reversal of 12089800 is 898021.

12089800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6320196 + 5769604 = 2514^2 + 2402^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12089807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30025 + ... + 30424.

Almost surely, 212089800 is an apocalyptic number.

12089800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12089800 is an abundant number, since it is smaller than the sum of its proper divisors (16019450).

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

12089800 is a wasteful number, since it uses less digits than its factorization.

12089800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60465 (or 60456 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 12089800 is about 3477.0389701584. The cubic root of 12089800 is about 229.5125150799.

The spelling of 12089800 in words is "twelve million, eighty-nine thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 60449 120898 241796 302245 483592 604490 1208980 1511225 2417960 3022450 6044900 12089800