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12816041 = 71830863
BaseRepresentation
bin110000111000…
…111010101001
3220010010022012
4300320322221
511240103131
61134405305
7213635360
oct60707251
926103265
1012816041
117263977
124360835
132869574
1419b87d7
1511d252b
hexc38ea9

12816041 has 4 divisors (see below), whose sum is σ = 14646912. Its totient is φ = 10985172.

The previous prime is 12816029. The next prime is 12816043. The reversal of 12816041 is 14061821.

12816041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12816041 - 210 = 12815017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12815998 and 12816016.

It is not an unprimeable number, because it can be changed into a prime (12816043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915425 + ... + 915438.

It is an arithmetic number, because the mean of its divisors is an integer number (3661728).

Almost surely, 212816041 is an apocalyptic number.

It is an amenable number.

12816041 is a deficient number, since it is larger than the sum of its proper divisors (1830871).

12816041 is an equidigital number, since it uses as much as digits as its factorization.

12816041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830870.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12816041 is about 3579.9498599841. The cubic root of 12816041 is about 234.0190952835.

Adding to 12816041 its reverse (14061821), we get a palindrome (26877862).

The spelling of 12816041 in words is "twelve million, eight hundred sixteen thousand, forty-one".

Divisors: 1 7 1830863 12816041