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12613089 = 34204363
BaseRepresentation
bin110000000111…
…010111100001
3212201210220110
4300013113201
511212104324
61130201533
7212131566
oct60072741
925653813
1012613089
117135445
1242832a9
1327c8088
14196486d
151192329
hexc075e1

12613089 has 4 divisors (see below), whose sum is σ = 16817456. Its totient is φ = 8408724.

The previous prime is 12613049. The next prime is 12613109. The reversal of 12613089 is 98031621.

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 not a de Polignac number, because 12613089 - 28 = 12612833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613019) 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, 2102179 + ... + 2102184.

It is an arithmetic number, because the mean of its divisors is an integer number (4204364).

Almost surely, 212613089 is an apocalyptic number.

It is an amenable number.

12613089 is a deficient number, since it is larger than the sum of its proper divisors (4204367).

12613089 is an equidigital number, since it uses as much as digits as its factorization.

12613089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204366.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12613089 is about 3551.4910953007. The cubic root of 12613089 is about 232.7772251016. Note that the first 3 decimals are identical.

The spelling of 12613089 in words is "twelve million, six hundred thirteen thousand, eighty-nine".

Divisors: 1 3 4204363 12613089