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18299541713 = 23897659917
BaseRepresentation
bin10001000010101111…
…001101100011010001
31202020022211001000012
4101002233031203101
5244434140313323
612223502404305
71215323352365
oct210257154321
952208731005
1018299541713
1178406835a2
123668590695
1319582ca8bb
14c585212a5
15721826678
hex442bcd8d1

18299541713 has 4 divisors (see below), whose sum is σ = 18307204020. Its totient is φ = 18291879408.

The previous prime is 18299541709. The next prime is 18299541719. The reversal of 18299541713 is 31714599281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31714599281 = 138617228793.

It can be written as a sum of positive squares in 2 ways, for example, as 2056803904 + 16242737809 = 45352^2 + 127447^2 .

It is a cyclic number.

It is not a de Polignac number, because 18299541713 - 22 = 18299541709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18299541719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3827570 + ... + 3832347.

It is an arithmetic number, because the mean of its divisors is an integer number (4576801005).

Almost surely, 218299541713 is an apocalyptic number.

It is an amenable number.

18299541713 is a deficient number, since it is larger than the sum of its proper divisors (7662307).

18299541713 is an equidigital number, since it uses as much as digits as its factorization.

18299541713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662306.

The product of its digits is 544320, while the sum is 50.

The spelling of 18299541713 in words is "eighteen billion, two hundred ninety-nine million, five hundred forty-one thousand, seven hundred thirteen".

Divisors: 1 2389 7659917 18299541713