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12130233 = 34043411
BaseRepresentation
bin101110010001…
…011110111001
3211211021112220
4232101132321
511101131413
61111554253
7205051053
oct56213671
924737486
1012130233
116935695
12408b989
13268936b
14187a8d3
1510e9223
hexb917b9

12130233 has 4 divisors (see below), whose sum is σ = 16173648. Its totient is φ = 8086820.

The previous prime is 12130169. The next prime is 12130259. The reversal of 12130233 is 33203121.

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 12130233 - 26 = 12130169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12134233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021703 + ... + 2021708.

It is an arithmetic number, because the mean of its divisors is an integer number (4043412).

Almost surely, 212130233 is an apocalyptic number.

It is an amenable number.

12130233 is a deficient number, since it is larger than the sum of its proper divisors (4043415).

12130233 is an equidigital number, since it uses as much as digits as its factorization.

12130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043414.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12130233 is about 3482.8484032470. The cubic root of 12130233 is about 229.7680901245.

Adding to 12130233 its reverse (33203121), we get a palindrome (45333354).

The spelling of 12130233 in words is "twelve million, one hundred thirty thousand, two hundred thirty-three".

Divisors: 1 3 4043411 12130233