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18214000829 = 531971744469
BaseRepresentation
bin10000111101101000…
…111001100010111101
31202000100212002222022
4100331220321202331
5244300241011304
612211205125525
71213234311143
oct207550714275
952010762868
1018214000829
1177a7368452
1236439b98a5
13194367a4ab
14c4b015593
1571907aebe
hex43da398bd

18214000829 has 8 divisors (see below), whose sum is σ = 18651873240. Its totient is φ = 17779617856.

The previous prime is 18214000823. The next prime is 18214000873. The reversal of 18214000829 is 92800041281.

It can be written as a sum of positive squares in 4 ways, for example, as 3681698329 + 14532302500 = 60677^2 + 120550^2 .

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 18214000829 - 28 = 18214000573 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 (18214000823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861794 + ... + 882675.

It is an arithmetic number, because the mean of its divisors is an integer number (2331484155).

Almost surely, 218214000829 is an apocalyptic number.

It is an amenable number.

18214000829 is a deficient number, since it is larger than the sum of its proper divisors (437872411).

18214000829 is a wasteful number, since it uses less digits than its factorization.

18214000829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744719.

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 18214000829 in words is "eighteen billion, two hundred fourteen million, eight hundred twenty-nine", and thus it is an aban number.

Divisors: 1 53 197 10441 1744469 92456857 343660393 18214000829