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12152585237 = 13934814249
BaseRepresentation
bin10110101000101100…
…11011110000010101
31011100221020021221112
423110112123300111
5144342030211422
65325520024405
7610103161442
oct132426336025
934327207845
1012152585237
1151768aa181
122431a62105
1311b895a350
14833dba9c9
154b1d60ee2
hex2d459bc15

12152585237 has 4 divisors (see below), whose sum is σ = 13087399500. Its totient is φ = 11217770976.

The previous prime is 12152585191. The next prime is 12152585251. The reversal of 12152585237 is 73258525121.

12152585237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73258525121 = 487150428183.

It can be written as a sum of positive squares in 2 ways, for example, as 6939889636 + 5212695601 = 83306^2 + 72199^2 .

It is a cyclic number.

It is not a de Polignac number, because 12152585237 - 26 = 12152585173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12152585194 and 12152585203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152585297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467407112 + ... + 467407137.

It is an arithmetic number, because the mean of its divisors is an integer number (3271849875).

Almost surely, 212152585237 is an apocalyptic number.

It is an amenable number.

12152585237 is a deficient number, since it is larger than the sum of its proper divisors (934814263).

12152585237 is an equidigital number, since it uses as much as digits as its factorization.

12152585237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934814262.

The product of its digits is 168000, while the sum is 41.

The spelling of 12152585237 in words is "twelve billion, one hundred fifty-two million, five hundred eighty-five thousand, two hundred thirty-seven".

Divisors: 1 13 934814249 12152585237