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12202120 = 235743579
BaseRepresentation
bin101110100011…
…000010001000
3211221221011101
4232203002020
511110431440
61113311144
7205500460
oct56430210
924857141
1012202120
1169846a7
1241054b4
1326b2cb8
141898ba0
15111069a
hexba3088

12202120 has 32 divisors (see below), whose sum is σ = 31377600. Its totient is φ = 4183488.

The previous prime is 12202117. The next prime is 12202129. The reversal of 12202120 is 2120221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 12202097 and 12202106.

It is not an unprimeable number, because it can be changed into a prime (12202129) 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, 21510 + ... + 22069.

It is an arithmetic number, because the mean of its divisors is an integer number (980550).

Almost surely, 212202120 is an apocalyptic number.

12202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202120 is an abundant number, since it is smaller than the sum of its proper divisors (19175480).

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

12202120 is a wasteful number, since it uses less digits than its factorization.

12202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43597 (or 43593 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12202120 is about 3493.1533032491. The cubic root of 12202120 is about 230.2210854621.

Adding to 12202120 its reverse (2120221), we get a palindrome (14322341).

The spelling of 12202120 in words is "twelve million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 43579 87158 174316 217895 305053 348632 435790 610106 871580 1220212 1525265 1743160 2440424 3050530 6101060 12202120