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12824661 = 39744071
BaseRepresentation
bin110000111011…
…000001010101
3220010120010110
4300323001111
511240342121
61134513233
7214002453
oct60730125
926116113
1012824661
11726a3a3
124365819
132870475
1419bb9d3
1511d4d76
hexc3b055

12824661 has 8 divisors (see below), whose sum is σ = 17276224. Its totient is φ = 8461440.

The previous prime is 12824627. The next prime is 12824683. The reversal of 12824661 is 16642821.

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

It is not a de Polignac number, because 12824661 - 26 = 12824597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12824611) 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, 21745 + ... + 22326.

It is an arithmetic number, because the mean of its divisors is an integer number (2159528).

Almost surely, 212824661 is an apocalyptic number.

It is an amenable number.

12824661 is a deficient number, since it is larger than the sum of its proper divisors (4451563).

12824661 is an equidigital number, since it uses as much as digits as its factorization.

12824661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44171.

The product of its digits is 4608, while the sum is 30.

The square root of 12824661 is about 3581.1535850896. The cubic root of 12824661 is about 234.0715501850.

The spelling of 12824661 in words is "twelve million, eight hundred twenty-four thousand, six hundred sixty-one".

Divisors: 1 3 97 291 44071 132213 4274887 12824661