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12999268 = 2219171043
BaseRepresentation
bin110001100101…
…101001100100
3220110102122101
4301211221210
511311434033
61142341444
7215330512
oct61455144
926412571
1012999268
1173795a7
12442a884
132901a99
141a254b2
15121b97d
hexc65a64

12999268 has 12 divisors (see below), whose sum is σ = 23946160. Its totient is φ = 6157512.

The previous prime is 12999263. The next prime is 12999289. The reversal of 12999268 is 86299921.

It is not an unprimeable number, because it can be changed into a prime (12999263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85446 + ... + 85597.

Almost surely, 212999268 is an apocalyptic number.

It is an amenable number.

12999268 is a deficient number, since it is larger than the sum of its proper divisors (10946892).

12999268 is a wasteful number, since it uses less digits than its factorization.

12999268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171066 (or 171064 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 12999268 is about 3605.4497638991. The cubic root of 12999268 is about 235.1290554149.

The spelling of 12999268 in words is "twelve million, nine hundred ninety-nine thousand, two hundred sixty-eight".

Divisors: 1 2 4 19 38 76 171043 342086 684172 3249817 6499634 12999268