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12069523 = 30613943
BaseRepresentation
bin101110000010…
…101010010011
3211201012021101
4232002222103
511042211043
61110405231
7204406054
oct56025223
924635241
1012069523
1168a4014
124060817
13266783b
14186272b
1510d624d
hexb82a93

12069523 has 4 divisors (see below), whose sum is σ = 12076528. Its totient is φ = 12062520.

The previous prime is 12069517. The next prime is 12069619. The reversal of 12069523 is 32596021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12069523 - 29 = 12069011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12069491 and 12069500.

It is not an unprimeable number, because it can be changed into a prime (12069823) 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, 1090 + ... + 5032.

It is an arithmetic number, because the mean of its divisors is an integer number (3019132).

Almost surely, 212069523 is an apocalyptic number.

12069523 is a deficient number, since it is larger than the sum of its proper divisors (7005).

12069523 is an equidigital number, since it uses as much as digits as its factorization.

12069523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7004.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 12069523 is about 3474.1219034455. The cubic root of 12069523 is about 229.3841305604.

The spelling of 12069523 in words is "twelve million, sixty-nine thousand, five hundred twenty-three".

Divisors: 1 3061 3943 12069523