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12690459035 = 52538091807
BaseRepresentation
bin10111101000110100…
…10000100110011011
31012202102100010002022
423310122100212123
5201442224142120
65455132325055
7626324056562
oct136432204633
935672303068
1012690459035
115422484781
12256201378b
131273213277
148855d0bd9
154e41ab025
hex2f469099b

12690459035 has 4 divisors (see below), whose sum is σ = 15228550848. Its totient is φ = 10152367224.

The previous prime is 12690459029. The next prime is 12690459037. The reversal of 12690459035 is 53095409621.

12690459035 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: 53095409621 = 129740937093.

It is a cyclic number.

It is not a de Polignac number, because 12690459035 - 214 = 12690442651 is a prime.

It is a super-2 number, since 2×126904590352 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12690459037) 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, 1269045899 + ... + 1269045908.

It is an arithmetic number, because the mean of its divisors is an integer number (3807137712).

Almost surely, 212690459035 is an apocalyptic number.

12690459035 is a deficient number, since it is larger than the sum of its proper divisors (2538091813).

12690459035 is an equidigital number, since it uses as much as digits as its factorization.

12690459035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538091812.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 12690459035 in words is "twelve billion, six hundred ninety million, four hundred fifty-nine thousand, thirty-five".

Divisors: 1 5 2538091807 12690459035