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18675435379 = 53333501863
BaseRepresentation
bin10001011001001001…
…001000011101110011
31210012112010102011211
4101121021020131303
5301221402413004
612325051220551
71230536403316
oct213111103563
953175112154
1018675435379
117a13884017
123752447757
1319b814b9a3
14c9240c97d
15744827504
hex459248773

18675435379 has 4 divisors (see below), whose sum is σ = 18678942576. Its totient is φ = 18671928184.

The previous prime is 18675435287. The next prime is 18675435437. The reversal of 18675435379 is 97353457681.

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

It is a cyclic number.

It is not a de Polignac number, because 18675435379 - 213 = 18675427187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18675432379) 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, 1745599 + ... + 1756264.

It is an arithmetic number, because the mean of its divisors is an integer number (4669735644).

Almost surely, 218675435379 is an apocalyptic number.

18675435379 is a deficient number, since it is larger than the sum of its proper divisors (3507197).

18675435379 is an equidigital number, since it uses as much as digits as its factorization.

18675435379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507196.

The product of its digits is 19051200, while the sum is 58.

The spelling of 18675435379 in words is "eighteen billion, six hundred seventy-five million, four hundred thirty-five thousand, three hundred seventy-nine".

Divisors: 1 5333 3501863 18675435379