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12068013 = 34022671
BaseRepresentation
bin101110000010…
…010010101101
3211201010012110
4232002102231
511042134023
61110354233
7204401466
oct56022255
924633173
1012068013
1168a2971
12405b979
132666c49
141861d6d
1510d5a93
hexb824ad

12068013 has 4 divisors (see below), whose sum is σ = 16090688. Its totient is φ = 8045340.

The previous prime is 12068009. The next prime is 12068033. The reversal of 12068013 is 31086021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31086021 = 310362007.

It is not a de Polignac number, because 12068013 - 22 = 12068009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12068033) 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, 2011333 + ... + 2011338.

It is an arithmetic number, because the mean of its divisors is an integer number (4022672).

Almost surely, 212068013 is an apocalyptic number.

It is an amenable number.

12068013 is a deficient number, since it is larger than the sum of its proper divisors (4022675).

12068013 is an equidigital number, since it uses as much as digits as its factorization.

12068013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022674.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12068013 is about 3473.9045755461. The cubic root of 12068013 is about 229.3745641927.

The spelling of 12068013 in words is "twelve million, sixty-eight thousand, thirteen".

Divisors: 1 3 4022671 12068013