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12243460525 = 5213715722769
BaseRepresentation
bin10110110011100010…
…00110000110101101
31011121021020020101221
423121301012012231
5200033311214100
65342523503341
7612255461122
oct133161060655
934537206357
1012243460525
11521312911a
122458387b51
1312017277ca
148420b4749
154b9d1201a
hex2d9c461ad

12243460525 has 24 divisors (see below), whose sum is σ = 15390789480. Its totient is φ = 9660917760.

The previous prime is 12243460519. The next prime is 12243460529. The reversal of 12243460525 is 52506434221.

12243460525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 7856517769 + 4386942756 = 88637^2 + 66234^2 .

It is not a de Polignac number, because 12243460525 - 217 = 12243329453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243460529) 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 23 ways as a sum of consecutive naturals, for example, 526341 + ... + 549109.

It is an arithmetic number, because the mean of its divisors is an integer number (641282895).

Almost surely, 212243460525 is an apocalyptic number.

It is an amenable number.

12243460525 is a deficient number, since it is larger than the sum of its proper divisors (3147328955).

12243460525 is a wasteful number, since it uses less digits than its factorization.

12243460525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23073 (or 23068 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 12243460525 its reverse (52506434221), we get a palindrome (64749894746).

The spelling of 12243460525 in words is "twelve billion, two hundred forty-three million, four hundred sixty thousand, five hundred twenty-five".

Divisors: 1 5 25 137 157 685 785 3425 3925 21509 22769 107545 113845 537725 569225 3119353 3574733 15596765 17873665 77983825 89368325 489738421 2448692105 12243460525