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12652765025 = 524112344161
BaseRepresentation
bin10111100100010100…
…11101111101100001
31012122210102001121212
423302022131331201
5201403101440100
65451304355505
7625355504525
oct136212357541
935583361555
1012652765025
1154031796aa
122551475b95
131268476214
148805bbd85
154e0c12635
hex2f229df61

12652765025 has 12 divisors (see below), whose sum is σ = 16072098924. Its totient is φ = 9875328000.

The previous prime is 12652765003. The next prime is 12652765063. The reversal of 12652765025 is 52056725621.

It can be written as a sum of positive squares in 6 ways, for example, as 659667856 + 11993097169 = 25684^2 + 109513^2 .

It is not a de Polignac number, because 12652765025 - 26 = 12652764961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6171056 + ... + 6173105.

It is an arithmetic number, because the mean of its divisors is an integer number (1339341577).

Almost surely, 212652765025 is an apocalyptic number.

It is an amenable number.

12652765025 is a deficient number, since it is larger than the sum of its proper divisors (3419333899).

12652765025 is a wasteful number, since it uses less digits than its factorization.

12652765025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12344212 (or 12344207 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 12652765025 in words is "twelve billion, six hundred fifty-two million, seven hundred sixty-five thousand, twenty-five".

Divisors: 1 5 25 41 205 1025 12344161 61720805 308604025 506110601 2530553005 12652765025