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12597061 = 22955009
BaseRepresentation
bin110000000011…
…011101000101
3212200222220211
4300003131011
511211101221
61125555421
7212034061
oct60033505
925628824
1012597061
1171243a4
124275b71
1327c09a9
14195caa1
15118c6e1
hexc03745

12597061 has 4 divisors (see below), whose sum is σ = 12652300. Its totient is φ = 12541824.

The previous prime is 12597059. The next prime is 12597083. The reversal of 12597061 is 16079521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16079521 = 36774373.

It can be written as a sum of positive squares in 2 ways, for example, as 10956100 + 1640961 = 3310^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 12597061 - 21 = 12597059 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 (12597041) 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, 27276 + ... + 27733.

It is an arithmetic number, because the mean of its divisors is an integer number (3163075).

Almost surely, 212597061 is an apocalyptic number.

It is an amenable number.

12597061 is a deficient number, since it is larger than the sum of its proper divisors (55239).

12597061 is an equidigital number, since it uses as much as digits as its factorization.

12597061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55238.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 12597061 is about 3549.2338609903. The cubic root of 12597061 is about 232.6785832637.

The spelling of 12597061 in words is "twelve million, five hundred ninety-seven thousand, sixty-one".

Divisors: 1 229 55009 12597061