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12999201 = 343100769
BaseRepresentation
bin110001100101…
…101000100001
3220110102112220
4301211220201
511311433301
61142341253
7215330355
oct61455041
926412486
1012999201
117379546
12442a829
132901a47
141a25465
15121b936
hexc65a21

12999201 has 8 divisors (see below), whose sum is σ = 17735520. Its totient is φ = 8464512.

The previous prime is 12999193. The next prime is 12999223. The reversal of 12999201 is 10299921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12999201 - 23 = 12999193 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12999241) 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, 50256 + ... + 50513.

It is an arithmetic number, because the mean of its divisors is an integer number (2216940).

Almost surely, 212999201 is an apocalyptic number.

It is an amenable number.

12999201 is a deficient number, since it is larger than the sum of its proper divisors (4736319).

12999201 is a wasteful number, since it uses less digits than its factorization.

12999201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100815.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 12999201 is about 3605.4404723972. The cubic root of 12999201 is about 235.1286514518.

It can be divided in two parts, 1299920 and 1, that added together give a palindrome (1299921).

The spelling of 12999201 in words is "twelve million, nine hundred ninety-nine thousand, two hundred one".

Divisors: 1 3 43 129 100769 302307 4333067 12999201