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12130529 = 79971583
BaseRepresentation
bin101110010001…
…100011100001
3211211021221212
4232101203201
511101134104
61111555505
7205051655
oct56214341
924737855
1012130529
116935934
12408bb95
132689538
14187aa65
1510e936e
hexb918e1

12130529 has 8 divisors (see below), whose sum is σ = 12418560. Its totient is φ = 11846016.

The previous prime is 12130523. The next prime is 12130541. The reversal of 12130529 is 92503121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12130529 - 216 = 12064993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12130523) 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 7 ways as a sum of consecutive naturals, for example, 6872 + ... + 8454.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 212130529 is an apocalyptic number.

It is an amenable number.

12130529 is a deficient number, since it is larger than the sum of its proper divisors (288031).

12130529 is an equidigital number, since it uses as much as digits as its factorization.

12130529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 12130529 is about 3482.8908969418. The cubic root of 12130529 is about 229.7699590307.

The spelling of 12130529 in words is "twelve million, one hundred thirty thousand, five hundred twenty-nine".

Divisors: 1 79 97 1583 7663 125057 153551 12130529