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199768 = 2324971
BaseRepresentation
bin110000110001011000
3101011000211
4300301120
522343033
64140504
71461262
oct606130
9334024
10199768
111270a8
1297734
136cc0a
1452b32
153e2cd
hex30c58

199768 has 8 divisors (see below), whose sum is σ = 374580. Its totient is φ = 99880.

The previous prime is 199753. The next prime is 199777. The reversal of 199768 is 867991.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 199768.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12478 + ... + 12493.

2199768 is an apocalyptic number.

It is an amenable number.

199768 is a deficient number, since it is larger than the sum of its proper divisors (174812).

199768 is a wasteful number, since it uses less digits than its factorization.

199768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24977 (or 24973 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 199768 is about 446.9541363496. The cubic root of 199768 is about 58.4577336113.

The spelling of 199768 in words is "one hundred ninety-nine thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 24971 49942 99884 199768