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12057697 = 16277411
BaseRepresentation
bin101101111111…
…110001100001
3211200121001101
4231333301201
511041321242
61110234401
7204326431
oct55776141
924617041
1012057697
116896143
124055a01
132662342
14185c2c1
1510d29b7
hexb7fc61

12057697 has 4 divisors (see below), whose sum is σ = 12066736. Its totient is φ = 12048660.

The previous prime is 12057637. The next prime is 12057713. The reversal of 12057697 is 79675021.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79675021 = 281283541.

It is a cyclic number.

It is not a de Polignac number, because 12057697 - 211 = 12055649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12057637) 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, 2079 + ... + 5332.

It is an arithmetic number, because the mean of its divisors is an integer number (3016684).

Almost surely, 212057697 is an apocalyptic number.

It is an amenable number.

12057697 is a deficient number, since it is larger than the sum of its proper divisors (9039).

12057697 is an equidigital number, since it uses as much as digits as its factorization.

12057697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 12057697 is about 3472.4194735083. The cubic root of 12057697 is about 229.3091874385.

The spelling of 12057697 in words is "twelve million, fifty-seven thousand, six hundred ninety-seven".

Divisors: 1 1627 7411 12057697