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16818682000 = 245315155691
BaseRepresentation
bin11111010100111100…
…01011100010010000
31121102010022120101011
433222132023202100
5233421040311000
611420522420304
71133532303211
oct175236134220
947363276334
1016818682000
11715078679a
123314661694
13178057a653
14b579a1408
1568680d2ba
hex3ea78b890

16818682000 has 80 divisors (see below), whose sum is σ = 40937629824. Its totient is φ = 6682800000.

The previous prime is 16818681983. The next prime is 16818682007. The reversal of 16818682000 is 28681861.

16818682000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (16818682007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274155 + ... + 329845.

Almost surely, 216818682000 is an apocalyptic number.

16818682000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16818682000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20468814912).

16818682000 is an abundant number, since it is smaller than the sum of its proper divisors (24118947824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16818682000 is a wasteful number, since it uses less digits than its factorization.

16818682000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55865 (or 55849 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 16818682000 in words is "sixteen billion, eight hundred eighteen million, six hundred eighty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 151 200 250 302 400 500 604 755 1000 1208 1510 2000 2416 3020 3775 6040 7550 12080 15100 18875 30200 37750 55691 60400 75500 111382 151000 222764 278455 302000 445528 556910 891056 1113820 1392275 2227640 2784550 4455280 5569100 6961375 8409341 11138200 13922750 16818682 22276400 27845500 33637364 42046705 55691000 67274728 84093410 111382000 134549456 168186820 210233525 336373640 420467050 672747280 840934100 1051167625 1681868200 2102335250 3363736400 4204670500 8409341000 16818682000