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18710075343 = 36236691781
BaseRepresentation
bin10001011011001101…
…010001011111001111
31210021221022022021110
4101123031101133033
5301304234402333
612332325503103
71231440005421
oct213315213717
953257268243
1018710075343
117a31393593
123761b71a93
1319c23898cb
14c96c68811
157478bb063
hex45b3517cf

18710075343 has 4 divisors (see below), whose sum is σ = 24946767128. Its totient is φ = 12473383560.

The previous prime is 18710075287. The next prime is 18710075429. The reversal of 18710075343 is 34357001781.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-18710075343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18710075243) 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, 3118345888 + ... + 3118345893.

It is an arithmetic number, because the mean of its divisors is an integer number (6236691782).

Almost surely, 218710075343 is an apocalyptic number.

18710075343 is a deficient number, since it is larger than the sum of its proper divisors (6236691785).

18710075343 is an equidigital number, since it uses as much as digits as its factorization.

18710075343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6236691784.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 18710075343 in words is "eighteen billion, seven hundred ten million, seventy-five thousand, three hundred forty-three".

Divisors: 1 3 6236691781 18710075343