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BaseRepresentation
bin10111101111101…
…01011001100100
3111212210200212000
423313311121210
5401442423040
631433125300
74636024155
oct1367653144
9455720760
10199186020
11a2487450
1256859830
1332360967
141c64d92c
1512748130
hexbdf5664

199186020 has 96 divisors (see below), whose sum is σ = 676045440. Its totient is φ = 48286080.

The previous prime is 199185989. The next prime is 199186033. The reversal of 199186020 is 20681991.

199186020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10827 + ... + 22706.

It is an arithmetic number, because the mean of its divisors is an integer number (7042140).

Almost surely, 2199186020 is an apocalyptic number.

199186020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199186020 is an abundant number, since it is smaller than the sum of its proper divisors (476859420).

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

199186020 is a wasteful number, since it uses less digits than its factorization.

199186020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33562 (or 33554 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 199186020 is about 14113.3277436613. The cubic root of 199186020 is about 584.0091049122.

The spelling of 199186020 in words is "one hundred ninety-nine million, one hundred eighty-six thousand, twenty".