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189693 = 3273011
BaseRepresentation
bin101110010011111101
3100122012200
4232103331
522032233
64022113
71420020
oct562375
9318180
10189693
1111a579
1291939
136845a
144d1b7
153b313
hex2e4fd

189693 has 12 divisors (see below), whose sum is σ = 313248. Its totient is φ = 108360.

The previous prime is 189691. The next prime is 189697. The reversal of 189693 is 396981.

It is not a de Polignac number, because 189693 - 21 = 189691 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 189693.

It is not an unprimeable number, because it can be changed into a prime (189691) 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, 1443 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (26104).

2189693 is an apocalyptic number.

It is an amenable number.

189693 is a deficient number, since it is larger than the sum of its proper divisors (123555).

189693 is a wasteful number, since it uses less digits than its factorization.

189693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024 (or 3021 counting only the distinct ones).

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

The square root of 189693 is about 435.5375988362. The cubic root of 189693 is about 57.4579907398.

The spelling of 189693 in words is "one hundred eighty-nine thousand, six hundred ninety-three".