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12672043 = 29436967
BaseRepresentation
bin110000010101…
…110000101011
3212211210202221
4300111300223
511221001133
61131334511
7212465506
oct60256053
925753687
1012672043
11717576a
1242b1437
132818b67
14197c13d
1511a4a2d
hexc15c2b

12672043 has 4 divisors (see below), whose sum is σ = 13109040. Its totient is φ = 12235048.

The previous prime is 12672029. The next prime is 12672053. The reversal of 12672043 is 34027621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12672043 - 29 = 12671531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12671999 and 12672017.

It is not an unprimeable number, because it can be changed into a prime (12672053) 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, 218455 + ... + 218512.

It is an arithmetic number, because the mean of its divisors is an integer number (3277260).

Almost surely, 212672043 is an apocalyptic number.

12672043 is a deficient number, since it is larger than the sum of its proper divisors (436997).

12672043 is an equidigital number, since it uses as much as digits as its factorization.

12672043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436996.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 12672043 is about 3559.7813135079. The cubic root of 12672043 is about 233.1393310340.

Adding to 12672043 its reverse (34027621), we get a palindrome (46699664).

The spelling of 12672043 in words is "twelve million, six hundred seventy-two thousand, forty-three".

Divisors: 1 29 436967 12672043