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12800196 = 22321073323
BaseRepresentation
bin110000110101…
…000011000100
3220002022120100
4300311003010
511234101241
61134204100
7213541233
oct60650304
926068510
1012800196
117252a82
124353630
1328622a6
1419b2b1a
1511cc9b6
hexc350c4

12800196 has 36 divisors (see below), whose sum is σ = 32668272. Its totient is φ = 4225584.

The previous prime is 12800191. The next prime is 12800209. The reversal of 12800196 is 69100821.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (12800191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2191 + ... + 5513.

It is an arithmetic number, because the mean of its divisors is an integer number (907452).

Almost surely, 212800196 is an apocalyptic number.

It is an amenable number.

12800196 is an abundant number, since it is smaller than the sum of its proper divisors (19868076).

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

12800196 is a wasteful number, since it uses less digits than its factorization.

12800196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440 (or 3435 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 12800196 is about 3577.7361557275. The cubic root of 12800196 is about 233.9226130248.

It can be divided in two parts, 12800 and 196, that added together give a square (12996 = 1142).

The spelling of 12800196 in words is "twelve million, eight hundred thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 107 214 321 428 642 963 1284 1926 3323 3852 6646 9969 13292 19938 29907 39876 59814 119628 355561 711122 1066683 1422244 2133366 3200049 4266732 6400098 12800196