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219143196 = 223241148471
BaseRepresentation
bin11010000111111…
…01110000011100
3120021100121221200
431003331300130
5422100040241
633424555500
75300454306
oct1503756034
9507317850
10219143196
11102778588
1261482b90
133652a73c
1421166976
151438b4b6
hexd0fdc1c

219143196 has 36 divisors (see below), whose sum is σ = 567459984. Its totient is φ = 71265600.

The previous prime is 219143191. The next prime is 219143203. The reversal of 219143196 is 691341912.

It is a happy number.

219143196 is a `hidden beast` number, since 219 + 1 + 431 + 9 + 6 = 666.

219143196 is digitally balanced in base 3, 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 (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 219143196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219143191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72760 + ... + 75711.

Almost surely, 2219143196 is an apocalyptic number.

It is an amenable number.

219143196 is an abundant number, since it is smaller than the sum of its proper divisors (348316788).

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

219143196 is a wasteful number, since it uses less digits than its factorization.

219143196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148522 (or 148517 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 219143196 is about 14803.4859408181. The cubic root of 219143196 is about 602.8963626415.

The spelling of 219143196 in words is "two hundred nineteen million, one hundred forty-three thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 148471 296942 445413 593884 890826 1336239 1781652 2672478 5344956 6087311 12174622 18261933 24349244 36523866 54785799 73047732 109571598 219143196