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18225494695 = 519318886523
BaseRepresentation
bin10000111110010100…
…101111101010100111
31202001011111001121001
4100332110233222213
5244311211312240
612212255334131
71213434102022
oct207624575247
952034431531
1018225494695
1178028a8a11
123647821347
131945b72cb5
14c4c7681b9
1571a09b89a
hex43e52faa7

18225494695 has 8 divisors (see below), whose sum is σ = 21983913936. Its totient is φ = 14504848896.

The previous prime is 18225494681. The next prime is 18225494723. The reversal of 18225494695 is 59649452281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18225494695 - 25 = 18225494663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9442297 + ... + 9444226.

It is an arithmetic number, because the mean of its divisors is an integer number (2747989242).

Almost surely, 218225494695 is an apocalyptic number.

18225494695 is a deficient number, since it is larger than the sum of its proper divisors (3758419241).

18225494695 is a wasteful number, since it uses less digits than its factorization.

18225494695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18886721.

The product of its digits is 6220800, while the sum is 55.

The spelling of 18225494695 in words is "eighteen billion, two hundred twenty-five million, four hundred ninety-four thousand, six hundred ninety-five".

Divisors: 1 5 193 965 18886523 94432615 3645098939 18225494695