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18232351853 = 229154351599
BaseRepresentation
bin10000111110101110…
…111001110001101101
31202001122101102211212
4100332232321301231
5244314440224403
612213102324205
71213546301522
oct207656716155
952048342755
1018232351853
117806761891
123649b89665
1319474041a1
14c4d631149
1571a9a34d8
hex43ebb9c6d

18232351853 has 8 divisors (see below), whose sum is σ = 18324192000. Its totient is φ = 18140618448.

The previous prime is 18232351843. The next prime is 18232351859. The reversal of 18232351853 is 35815323281.

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 18232351853 - 218 = 18232089709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18232351853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18232351859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327548 + ... + 379146.

It is an arithmetic number, because the mean of its divisors is an integer number (2290524000).

Almost surely, 218232351853 is an apocalyptic number.

It is an amenable number.

18232351853 is a deficient number, since it is larger than the sum of its proper divisors (91840147).

18232351853 is a wasteful number, since it uses less digits than its factorization.

18232351853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53371.

The product of its digits is 172800, while the sum is 41.

The spelling of 18232351853 in words is "eighteen billion, two hundred thirty-two million, three hundred fifty-one thousand, eight hundred fifty-three".

Divisors: 1 229 1543 51599 353347 11816171 79617257 18232351853