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12130774 = 26065387
BaseRepresentation
bin101110010001…
…100111010110
3211211022021221
4232101213112
511101141044
61112000554
7205052455
oct56214726
924738257
1012130774
116936037
12409015a
132689696
14187ab9c
1510e9484
hexb919d6

12130774 has 4 divisors (see below), whose sum is σ = 18196164. Its totient is φ = 6065386.

The previous prime is 12130771. The next prime is 12130849. The reversal of 12130774 is 47703121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130771) 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 as a sum of consecutive naturals, namely, 3032692 + ... + 3032695.

It is an arithmetic number, because the mean of its divisors is an integer number (4549041).

Almost surely, 212130774 is an apocalyptic number.

12130774 is a deficient number, since it is larger than the sum of its proper divisors (6065390).

12130774 is an equidigital number, since it uses as much as digits as its factorization.

12130774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065389.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 12130774 is about 3482.9260686957. The cubic root of 12130774 is about 229.7715059064.

Adding to 12130774 its reverse (47703121), we get a palindrome (59833895).

The spelling of 12130774 in words is "twelve million, one hundred thirty thousand, seven hundred seventy-four".

Divisors: 1 2 6065387 12130774