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12200412 = 2237220749
BaseRepresentation
bin101110100010…
…100111011100
3211221211211010
4232202213130
511110403122
61113255220
7205462500
oct56424734
924854733
1012200412
116983394
124104510
1326b22a3
141898300
15110ee0c
hexba29dc

12200412 has 36 divisors (see below), whose sum is σ = 33117000. Its totient is φ = 3485664.

The previous prime is 12200399. The next prime is 12200431. The reversal of 12200412 is 21400221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9787 + ... + 10962.

Almost surely, 212200412 is an apocalyptic number.

12200412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12200412 is an abundant number, since it is smaller than the sum of its proper divisors (20916588).

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

12200412 is a wasteful number, since it uses less digits than its factorization.

12200412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20770 (or 20761 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12200412 is about 3492.9088164451. The cubic root of 12200412 is about 230.2103431768.

Adding to 12200412 its reverse (21400221), we get a palindrome (33600633).

The spelling of 12200412 in words is "twelve million, two hundred thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 20749 41498 62247 82996 124494 145243 248988 290486 435729 580972 871458 1016701 1742916 2033402 3050103 4066804 6100206 12200412