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12065957 = 15179907
BaseRepresentation
bin101110000001…
…110010100101
3211201000101022
4232001302211
511042102312
61110340525
7204362501
oct56016245
924630338
1012065957
1168a1372
12405a745
132666027
141861301
1510d5172
hexb81ca5

12065957 has 4 divisors (see below), whose sum is σ = 12146016. Its totient is φ = 11985900.

The previous prime is 12065947. The next prime is 12065987. The reversal of 12065957 is 75956021.

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 12065957 - 24 = 12065941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12065947) 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, 39803 + ... + 40104.

It is an arithmetic number, because the mean of its divisors is an integer number (3036504).

Almost surely, 212065957 is an apocalyptic number.

It is an amenable number.

12065957 is a deficient number, since it is larger than the sum of its proper divisors (80059).

12065957 is an equidigital number, since it uses as much as digits as its factorization.

12065957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80058.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 12065957 is about 3473.6086423200. The cubic root of 12065957 is about 229.3615374449.

The spelling of 12065957 in words is "twelve million, sixty-five thousand, nine hundred fifty-seven".

Divisors: 1 151 79907 12065957