Search a number
-
+
12704208 = 2431124061
BaseRepresentation
bin110000011101…
…100111010000
3212220102220020
4300131213100
511223013313
61132143440
7212661336
oct60354720
925812806
1012704208
117197950
124307b80
13282a6aa
141989b56
1511ae323
hexc1d9d0

12704208 has 40 divisors (see below), whose sum is σ = 35804256. Its totient is φ = 3849600.

The previous prime is 12704201. The next prime is 12704213. The reversal of 12704208 is 80240721.

It is a super-2 number, since 2×127042082 = 322793801814528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704201) 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 7 ways as a sum of consecutive naturals, for example, 11503 + ... + 12558.

Almost surely, 212704208 is an apocalyptic number.

It is an amenable number.

12704208 is an abundant number, since it is smaller than the sum of its proper divisors (23100048).

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

12704208 is a wasteful number, since it uses less digits than its factorization.

12704208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24083 (or 24077 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12704208 is about 3564.2962839809. The cubic root of 12704208 is about 233.3364208208.

Adding to 12704208 its reverse (80240721), we get a palindrome (92944929).

The spelling of 12704208 in words is "twelve million, seven hundred four thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 24061 48122 72183 96244 144366 192488 264671 288732 384976 529342 577464 794013 1058684 1154928 1588026 2117368 3176052 4234736 6352104 12704208