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12030011 = 71718573
BaseRepresentation
bin101101111001…
…000000111011
3211122012001222
4231321000323
511034430021
61105502255
7204152630
oct55710073
924565058
1012030011
116877364
12404198b
132652866
141852187
1510c96ab
hexb7903b

12030011 has 4 divisors (see below), whose sum is σ = 13748592. Its totient is φ = 10311432.

The previous prime is 12029987. The next prime is 12030017. The reversal of 12030011 is 11003021.

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 12030011 - 26 = 12029947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859280 + ... + 859293.

It is an arithmetic number, because the mean of its divisors is an integer number (3437148).

Almost surely, 212030011 is an apocalyptic number.

12030011 is a deficient number, since it is larger than the sum of its proper divisors (1718581).

12030011 is an equidigital number, since it uses as much as digits as its factorization.

12030011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718580.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 12030011 is about 3468.4306249369. The cubic root of 12030011 is about 229.1335452885.

Adding to 12030011 its reverse (11003021), we get a palindrome (23033032).

The spelling of 12030011 in words is "twelve million, thirty thousand, eleven".

Divisors: 1 7 1718573 12030011