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12054013 = 16373951
BaseRepresentation
bin101101111110…
…110111111101
3211200101222221
4231332313331
511041212023
61110205341
7204312616
oct55766775
924611887
1012054013
1168933a4
124053851
13266076a
14185ac0d
1510d185d
hexb7edfd

12054013 has 4 divisors (see below), whose sum is σ = 12128128. Its totient is φ = 11979900.

The previous prime is 12054011. The next prime is 12054017. The reversal of 12054013 is 31045021.

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 12054013 - 21 = 12054011 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 (12054011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36813 + ... + 37138.

It is an arithmetic number, because the mean of its divisors is an integer number (3032032).

Almost surely, 212054013 is an apocalyptic number.

It is an amenable number.

12054013 is a deficient number, since it is larger than the sum of its proper divisors (74115).

12054013 is an equidigital number, since it uses as much as digits as its factorization.

12054013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74114.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12054013 is about 3471.8889671186. Note that the first 3 decimals coincide. The cubic root of 12054013 is about 229.2858313727.

Adding to 12054013 its reverse (31045021), we get a palindrome (43099034).

The spelling of 12054013 in words is "twelve million, fifty-four thousand, thirteen".

Divisors: 1 163 73951 12054013