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12020200 = 235260101
BaseRepresentation
bin101101110110…
…100111101000
3211121200121121
4231312213220
511034121300
61105345024
7204112213
oct55664750
924550547
1012020200
11686aa55
124038174
13264b25a
14184c77a
1510c681a
hexb769e8

12020200 has 24 divisors (see below), whose sum is σ = 27947430. Its totient is φ = 4808000.

The previous prime is 12020161. The next prime is 12020209. The reversal of 12020200 is 202021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8844676 + 3175524 = 2974^2 + 1782^2 .

It is not an unprimeable number, because it can be changed into a prime (12020209) 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, 29851 + ... + 30250.

Almost surely, 212020200 is an apocalyptic number.

12020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020200 is an abundant number, since it is smaller than the sum of its proper divisors (15927230).

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

12020200 is a wasteful number, since it uses less digits than its factorization.

12020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60117 (or 60108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 12020200 is about 3467.0160080392. The cubic root of 12020200 is about 229.0712388724.

Adding to 12020200 its reverse (202021), we get a palindrome (12222221).

The spelling of 12020200 in words is "twelve million, twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 60101 120202 240404 300505 480808 601010 1202020 1502525 2404040 3005050 6010100 12020200