Search a number
-
+
12528235741 = 729569108463
BaseRepresentation
bin10111010101011110…
…11011010011011101
31012100010002022120011
423222233123103131
5201124212020431
65431055323221
7622314150430
oct135257332335
935303068504
1012528235741
115349953a3a
122517820511
131248724858
1486bc43817
154d4d14cb1
hex2eabdb4dd

12528235741 has 16 divisors (see below), whose sum is σ = 14837875200. Its totient is φ = 10349877888.

The previous prime is 12528235739. The next prime is 12528235781. The reversal of 12528235741 is 14753282521.

It is not a de Polignac number, because 12528235741 - 21 = 12528235739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12528235694 and 12528235703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528235721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61276 + ... + 169738.

It is an arithmetic number, because the mean of its divisors is an integer number (927367200).

Almost surely, 212528235741 is an apocalyptic number.

It is an amenable number.

12528235741 is a deficient number, since it is larger than the sum of its proper divisors (2309639459).

12528235741 is a wasteful number, since it uses less digits than its factorization.

12528235741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109068.

The product of its digits is 134400, while the sum is 40.

The spelling of 12528235741 in words is "twelve billion, five hundred twenty-eight million, two hundred thirty-five thousand, seven hundred forty-one".

Divisors: 1 7 29 203 569 3983 16501 108463 115507 759241 3145427 22017989 61715447 432008129 1789747963 12528235741